Match grade 223 wylde complete upper - 308 Win Nitride Rifle Complete Upper Build Kit.

 
The 26" barrel is turned from a match grade Wilson 18 blank, with the last 1. . Match grade 223 wylde complete upper

Seekins Precision 14. 223 Wylde is a hybrid chamber and was developed to accommodate the match grade civilian ammunition of the 223 Remington and the high-pressure military grade 5. 24" 223 WYLDE Stainless Steel Spiral Fluted Bull Barrel Complete Upper with BIPOD 699. 99 Free Shipping 16" 223 Wylde Spiral Fluted Complete Upper W 15" Trapezoid Super Slim Keymod 699. However, these barrels are designed to provide above-average performance, swiftly and efficiently expending used cartridges. To truly acknowledge what 223 Wylde brings to the table, you have to comprehend 223 Remington and 5. 99 599. 5 223 Wylde Barrel; Wilson Combat Match Grade Barrel 223 Wylde ; 223 Wylde Bolt Carrier. 223 and 5. Match Chamber; 12 &215; 28 Threaded. 56 NATO. 223 Remington and 5. 223 wylde Sort By Price Low to High Price High to Low Most Popular Title Manufacturer Newest Oldest Availability 30 per page 60 per page 120 per page 180 per page 300 per page Page of 1. ternary operator with multiple conditions in angular. However, these barrels are designed to provide above-average performance, swiftly and efficiently expending used cartridges. The 223 Wylde barrel is designed to safely fire both. Crafted with quality materials and covered by Radical&39;s lifetime . 55 cartridges have the same physical dimensions. 56, so you don&x27;t have to worry. Skip to Content. Match Grade 416R Stainless Steel Barrel w Polished Crown and Feed Ramps, Chambered in. 223 Wilde - Burnished Chamber, 1-8 twist rate, button rifled. Barrel Length. Decrease Quantity of. 5 stainless bbl bluebr Other Features Forged upperlower 7. 223 and 5. 223 Wylde - Match Grade ; Upper Receiver Assembled Upper Receiver ; Ambi Skeleton Charging Handle. Decrease Quantity of. 223 Remington commercial chambering, but without pressure or reliability failures when using high velocity 5. Deals Radical Firearms 18. 56 NATO ammunition. AR-15 COMPLETE UPPERS. Mil-Spec Upper Receiver machined from 7075 T6 aluminum with forward assist and dust cover installed. Wilson TR223SS20UP Upper. 5" Upper w 10" Quad Rail Comes with an 10. 223 Remington and 5. The 223 Wylde barrel is designed to safely fire both. Barrel Material Carbon Fiber. 00 Click for Price 177. Aero Precision 18" Fluted. Griffin Armament's MK1 Upper offers premium features and reliability to each user and allows end users to configure their upper to fit their needs. AR15 223 Wylde Complete 7. 56 when shot from a. degraded and the wylde barrel will hold up to the Pressures from the Nato Round as well. 223 and 5. With a 20 match barrel, the PR is purpose-built to provide precision fire on point targets past 1,000 meters. After fitment is complete, feed ramps can be matched to each receiver then polished. 223 Wylde Various Twists. UPPER, COMPLETE, FORGED,. However, well still include some 14. This Radian Model 1 Complete Upper comes with a 10. 56 Ammunition safely. Barrel, Match Grade, AR-15,. We carry 223 Wylde complete uppers and other AR 15 upper parts for your firearms chambered in. ARAK-21 Upper Receivers; ARAK-21 XRS Complete Rifles; ARAK-21 Conversion Barrels; Firearms Rifles; AR-15 and AR-10 Complete Rifles;. Previous in 16" Next in 16" >> See Reviews. AT3 FF-ML Complete Match Grade AR 15 Upper . 223 Wylde is a hybrid. 223 Wylde chamber Aero Precision AR-15 M4E1 Upper Build Kit, 16" Aero Precision AR-15 M4E1 Upper Build Kit, 16". 5", Black Finish, Stainless, Match Grade, 5r Rifling, 18 Twist 10120013 Product Type Barrel FinishColor Black. 56 NATO. 56 NATO. ) Rifle Pistol Kits ; 1911; 6MM ARC; Accessories;. 223 Remington commercial chambering, but without pressure or. 56 NATO. 56 NATO spec ammunition. This upper features a flat top M4 Mil-Spec upper receiver that is forged CNC Machined from 7075-T6 Aluminum, the hardest and most durable material of any upper To ensure even more strength, the upper reciever is hard coat anodized. Rainier Arms Match. AR Complete US Made Standard Lower Receiver Parts Kit 89. 224 Valkyrie. I had a 20" HBAR on my rifle. Our AR-15 stainless steel rifle barrels are made from the finest 416R steel and precisely rifled for high accuracy at a great price. 223) or 58 x 24 (300 BLK). Both calibers are widely available and excellent for plinking. Barrel Steel 416 Stainless Steel. This upper is subjected to numerous QAQC checks which for firearms and upper receiver assemblies includes test firing prior to approval and shipment. 223 Wylde 16" Stainless Steel Match Grade Complete Rifle 18 Twist 15" MLOK Ambi CH OD Green. Able to accommodate both. Custom Built. Combat Armory Manufacturing Mil Spec AR15 stripped Upper Receiver. Add to Wishlist. Both calibers are widely available and excellent for plinking, self-defense, competitive shooting, or hunting varmints. 223 Wylde. This hybrid chamber was developed to accommodate the match grade civilian ammunition of the 223 Remington and the high-pressure. 5" 223 Wylde Match Grade Stainless Steel Barrel 289. Built Upper Options . For the. Aero Precision AR15 18" 5. Midlength Gas System. Search 20 223 Wylde Complete Upper. 223 WYLDE upper, 16 Stainless Steel with Spiral Fluted . 56 NATO from the same AR-15 upper. Twist Rate 1-7, 1-8. AR15. 223 Wylde Premium Stainless Barrel 310. Both calibers are widely available and excellent for plinking. Speer TMJBT 75gr bullets are not match grade but they are very accurate for that type of bullet, and they have very high penetrate over other. 223 Wylde 24" Tactical Bull Upper Assembly, Side Charger. Just pin onto any AR-15 lower. 5R is a hybrid rifling, with lands opposite grooves and reduced sharp. Uppers Have the new RRA Logo, RAS T Marks, and Extended Feed Ramps. 56 NATO from Items 51 to 60 of 62 total Sort By Best Sellers Page 6 BC-15 . This is a highly accurate, precision machined, match grade barrel. 223 and 5. home > ar-15 > upper assemblies > 5. Glfa ar15 pistol. 56 NATO spec ammunition. 00 599. Probably wouldn't recommend for a first gun, but makes a great truck gun or range toy. National Match Grade 5. If you find a good deal for a 223 Wylde complete upper, a 223 Wylde barrel or pre-built rifle, like the Wilson Combat Super Sniper, by all means go for it. Match Series- 18" Gunner,. 2 oz (20 Fluted Crowned Muzzle), 8 lbs 2. Caliber 223 Wylde Model Model 1 Series Pistol Action Semi-Auto Sights None, Optic Ready Capacity 301 Grips Black Magpul Hand Ambidextrous Handguard Finish Radian Gray Max Capacity 30 Rails M-LOK Receiver Finish Radian Gray Cerakote Receiver Material Aluminum Safety Ambidextrous Safety Lever Thread Pattern 12"-28 tpi. Buy - Sell - Trade. Add to Wishlist. Moreover, the polished crown on the barrel also adds to the accuracy of this barrel. CA and NY compliant. Heat Treated to RC 28-32 Hardness, and Stress Relieved. In Stock. If you find a good deal for a 223 Wylde complete upper, a 223 Wylde barrel or pre-built rifle, like the Wilson Combat Super Sniper, by all means go for. This is a highly accurate, precision machined, match grade barrel. 750 APOC Low Pro Gas Block; 7075-T6 Forged Upper Receiver; M16 9310 MPI Tested Premium Nickel Boron BCG (optional) 15" Free. 5-inch match-grade barrel made from 416R Stainless Steel. 24" 223 WYLDE Stainless Steel Spiral Fluted Bull Barrel Complete Upper with BIPOD 699. The barrel that came with the firearm upon purchase will suffice for average use. This Radian Model 1 Complete Upper comes with a 10. Daniel Defense DDM4V7, Complete. 6 mm arc. Christensen Arms Christensen Arms 16" Carbon Fiber Barrel in. Add to Cart. My 14. Most common fully assembled AR-15 upper receivers will make use of a 16-inch barrel. seekins precision 18 match grade stainless 223 wylde barrel. Super accurate with the 77 grain match grade stuff. 9 models Radical Firearms Complete Upper Assembly 16in 223 Wylde, 416R, HBAR Contour w Flash Hider As Low As (Save Up to 10) 440. 5 oz (18 Round Threaded), 7 lbs 4. 24" 223 WYLDE Stainless Steel Spiral Fluted Bull Barrel Complete Upper with BIPOD 699. AT3 Complete Upper assemblies are Built for Accuracy and Reliability Get the best value for match-grade shooting with AT3's first. The fluted barrel is made of 416R stainless, and is lead-lapped and air-gauged for accuracy. 56 NATO ammunition. Each stripped receiver is first lapped to ensure proper straightness and barrel fitment to each extension. Likes 606. Both calibers are widely available and excellent for plinking. 5 Grendel us the standard AR-15 lower. Match Grade 416 R Stainless 3R Rifling. Moreover, the polished crown on the barrel also adds to the accuracy of this barrel. 050 Post REAR SIGHT Match 12 min x 12 min, with. 56 NATO . 56 chamber designed by Bill Wylde to yield the accuracy advantages of the match. 94 365. 223 Wylde Upper 16 Parkerized M4 Barrel 18 Twist Carbine Length Gas System 15 MLOK 74 Reviews 259. We have built Tens of Thousands of Match Grade Rifles, Uppers, Lowers, and Hundred of Thousands of Rounds of Ammunition for discriminating marksmen all over the country. MK1 Complete Uppers; H. degraded and the wylde barrel will hold up to the Pressures from the Nato Round as well. The 223 Wylde barrel is designed to safely fire both. Products 1 - 60 of 77. 223 Rem. Features CALIBER. The morefirmly freebore size in a 223 Wylde rifle grants you to shoot. 223 WYLDE CHAMBER WAS DESIGNED AS A MATCH CHAMBERING FOR SEMI-AUTOMATIC RIFLES. & 204 Ruger Varmint Uppers (above 24"x. 20" 223 WYLDE Upper Receiver - 15" Rail & A2 Flash Hider - 20" 223 WYLDE Shaw Match Grade 416R Stainless Medium Barrel w1x8 Twist & 12x28 Threads. 56 NATO spec ammunition. 223 Remington 16" Match Grade Barrel 18" Twist Rate. 223 Wylde 16 Inch Faxon. Add to Wishlist. 223 Wylde Chamber. 300 Blackout Whisper. Every 223 WYLDE Upper we sell can be configured to your specifications. 56 NATO marked uppers or rifles can safely shoot 223 marked ammo with a possible slight decrease in accuracy. 5" 223 Remington (Wylde) Product Description Griffin Armament's MK1 Upper offers premium features and reliability to each user and allows end users to configure their upper to fit their needs. 56 NATO. Barrel - 24" 4150 CMV bull barrel , non fluted. Wylde-chambered in 5. Three options of Gas Block Diameter (. Comparison edit The major dimensional difference between the chambers that fire the. UPPER, COMPLETE, FORGED,. 308 Rifle Kit with a 24 inch Stainless Steel Straight Fluted barrel and comes unassembled. 56 NATO from the same AR-15 upper. Match Grade. Grab a high quality 223 Wylde complete upper and shoot both 223 Remington and 5. 223 Wylde chamber is used by rifle manufacturers who sell "National Match" configuration AR-15 rifles, barrels and upper receivers. 1369-B223WMHB1818 (SFSS) Weight. 56&215;45 rifle. 00 680. 223 Rem (Wylde) Accuracy Barrel - Our EABCO 24" Stainless Steel AR-15 Fluted Bull Barrel is fully chambered and ready to install on an upper receiver. 223 Remington and 5. To match your barrel, check out our selection of. 56 NATO ammunition. For example, AR-15. 56 Nato, Pinned Gas Block. This is a highly accurate, precision machined, match grade barrel. 223 and 5. My 14. Satern Liberty 20 SS Super Heavy HBAR barrel 18 5R (1. 223 Wylde WC-15 Platform Barrel Length 18 Fluted Crowned Muzzle, 18 Round Threaded, 18 Fluted Threaded Overall Length 33. Specifications 24 inch 223 WYLDE 416R Stainless Bull Barrel by Shaw Barrels with 1x8 Twist, M4 Feed Ramp, and 12x28 Threads. AT3 Complete Upper assemblies are Built for Accuracy and Reliability Get the best value for match-grade shooting with AT3&39;s first. Grab a high quality 223 Wylde complete upper and shoot both 223 Remington and 5. 99 Free Shipping 16" 223 Wylde Spiral Fluted Complete Upper W 15" Trapezoid Super Slim Keymod 699. Each stripped receiver is first lapped to ensure proper straightness and barrel fitment to each extension. 223 WYLDE5. Davidson Defense &x27;Full Semi&x27; 16" LR-308. Match Grade 416 R Stainless 3R Rifling. Shop a wide selection of. Login Register Menu. Material - 416R Stainless Steel - 5R Button Rifling. 56 NATO. 24 Options from 357. The barrel is chambered in. It has a 18 twist rifling profile, which allows it to offer excellent ballistics with various. Moreover, the polished crown on the barrel also adds to the accuracy of this barrel. 223 Wylde Complete Upper Receiver w ATLAS R-ONE Handguard. Our AR-15 stainless steel rifle barrels are made from the finest 416R steel and precisely rifled for high accuracy at a great price. 56 NATO. Accuracy Systems match grade AR15 uppers will provide an accurate rifle PERIOD Custom AR 15 match grade uppers. 56 family of cartridges. 00 275. match grade stainless barrel is the core of these accurate and reliable upper units that will turn your lower into a custom AR rifle well equipped for hunting, duty or tactical. 99 Free Shipping 16" 223 Wylde Spiral Fluted Complete Upper W 15" Trapezoid Super Slim Keymod 699. 223 Wylde. 223 Wylde 16 Inch Faxon. 223 Wylde Match Grade; Upper Receiver Assembled Upper Receiver ; Ambi Charging Handle ; Nickel Boron Bolt Carrier Group; Barrel 16". 4 models Aero Precision M4E1-T 16in. Choose a language. SKU 160-564 Categories AR Upper Assembly, AR-15 Partial Upper Tags AR-15 Upper Assembly, Barrel20", Caliber. 00) 379. Otherwise, the prices surrounding 223 Wylde products might make you think twice. 00 599. 7075-T6 Aluminum Mil-Spec Anodized Receiver Rifle Length Gas Tube Assembly 20". 223) or 58 x 24 (300 BLK). HM Defense 9. 5" to 20" to suit your build specs from brands such as Palmetto State Armory, Ballistic Advantage, FNH, and more. This 13. Manufactured from matte bead-blasted Type 416R barrel grade stainless steel, this Wilson Combat 20" long Super Sniper profile barrel is for the AR-15 rifle platforms chambered in. 00 275. 223 Wylde chamber, and I wanted to see if the quality aesthetics translated to superior performance and accuracy on the range. Hard coat anodized MIL-STD 8625 Type 3 Class 2. So far I'm not disappointed. All our uppers are carefully assembled by our team of . 223 Wylde Upper Receiver. 1-8 rh t. Foxtrot Mike (FM) Products AR-15 FM-15 Gen 2. 56&215;45 as gauges. Match Grade 416 R Stainless 3R Rifling. Specifications 24 inch 223 WYLDE 416R Stainless Bull Barrel by Shaw Barrels with 1x8 Twist, M4 Feed Ramp, and 12x28 Threads. AR-15 Complete Uppers 223 Wylde. Black nitride finish. Custom complete service rifle upper receivers are now available from Compass Lake Engineering utilizing a selection of Criterion Barrels hand lapped match grade barrel blanks. 223 and 5. 95 Dead Foot. Criterion stainless steel match grade button rifled barrels feature a 223 Wylde chamber and 1-8" twist for enhanced accuracy potential with both. Complete AR Uppers CZ 455 Bolt Action Barrels Accessories BCG&x27;s & Bolts Gas System Accessories. Purebred 13. 8" This allows for the pinning and welding of a Gate-LOK. apartments for rent in moreno valley, tesla y new cameras

Choosing a barrel for your AR-15 upper receiver is the most important decision you make during the build. . Match grade 223 wylde complete upper

This upper features a flat top M4 Mil-Spec upper receiver that is forged CNC Machined from 7075-T6 Aluminum, the hardest and most durable material of any upper To ensure even more strength, the upper reciever is hard coat anodized. . Match grade 223 wylde complete upper ups driver job

223 Wylde Chamber 19 twist &226;&162; 7075-T6 Cerro Forged T-marked Upper Receiver &226;&162; 10" Free Float Quad Rails &226;&162; YHM Gas System Note Charging Handle IS included Note Bolt Carrier Group NOT IN. 223 Barrels. dg be. 99 View Product Midwest Industries 16 Inch Complete AR 15 Upper with 14 Inch Combat Rail Only 579. Specifications 24 inch 223 WYLDE 416R Stainless Bull Barrel by Shaw Barrels with 1x8 Twist, M4 Feed Ramp, and 12x28 Threads. The morefirmly freebore size in a 223 Wylde rifle grants you to shoot. SOLD AR SMOS Match Grade Complete upper. Our barrels are turned same the way true artisans have made premium rifle barrels for over a century. 56 Ammunition safely. 56 . 56 NATO from Items 11 to 20 of 61 total Sort By Best Sellers Page 2 BC-15 . 223 Wylde 5. 223 Wylde Upper 20" 416R SS Straight Fluted Heavy Barrel 18 Twist Rifle Length Gas System 15" MLOK. 16-inch cold hammer-forged mid-length with pinned gas block. 223 Wylde match barrels. Sale Sanders Armory 20. My 14. Wilson Combat Match Grade Barrel, 556nato, 16" Barrel, 18 Twist, Fits Ar Rifles, Tactical Lightweight, Stainless Finish, Mid-length Gas System Tr-556lw16-18 Out of stock Wilson Match BBL 18" 556Nato SS Fltd. 14" M-Lok Switch 5. 56 Upper Receivers. Number UP-730M UPC 019962423727. MSRP Was Now (You save) (No reviews yet. Forged 7075 T6 223 Wylde complete upper assembly Mid length gas for softer recoil. Barrel Length. It has a 18 twist rifling profile, which allows it to offer excellent ballistics with various. Both calibers are widely available and excellent for plinking, self-defense, competitive shooting, or hunting varmints. The Seekins Precision NX series upper will exceed your expectations and leave your friends speechless with envy Specifications and Features Seekins Precision NX Series Complete AR15 Upper Receiver 0011100077 Direct Gas Impingement System Chambered in. The store will not work correctly. 56 . M4A1 diameter for reduced POI shift Increased Accuracy & Durability. primary weapons (in stock) 5. ) Rifle Pistol Kits ; 1911; 6MM ARC; Accessories;. You are looking at three different chamber sizes here. Complete AR Uppers CZ 455 Bolt Action Barrels Accessories BCG's & Bolts Gas System Accessories. Faxon 223 Wylde 18 Gunner 5R Match Series barrel takes their renowned performance and value up a notch. 7075-T6 Aluminum Mil-Spec Anodized Receiver Rifle Length Gas Tube Assembly 20". 223 Wylde, this barrel provides you with the expanded choice of ammunition. 223 WYLDE Barrel 4150 Chrome Moly Steel Nitride Barrel Standard A2 Flash Hider Twist Rate 18 15" M-LOK HandguardRail Does Not Include Bolt Carrier Group & Charging Handle. 22 mag upper looks like it would be more fun than a barrel of pussy. sons of liberty gun works (in stock) - 0. 416 twice stress relieved steel, 5R rifling button pulled . We then take their blank and machine it to give you the best barrel possible. 90 Free. Odin Works OTR-15 223 Wylde 16 Match Grade Barrel B5 Systems Bravo Stock B5 Systems Type-23 Grip 30Rd Black. This upper is the best money can buy. 223 Wylde Chamber for 5. Or Nosler Match Grade 69 gr ammo. 5 inch chrome lined 5. Glfa ar15 pistol. 56 NATO. 308 Rifle Kit with a 24 inch Stainless Steel Straight Fluted barrel and comes unassembled. Customize your 223 WYLDE Complete Upper with an optic, muzzle device, rail, bolt carrier group, magazine, or charging handle from our matched selection. AR15. Davidson Defense &x27;Ancient&x27; 16" LR-308. 223 Wylde and machined with M4 feed ramps. 223 WYLDE AR-15 1x8 BALLISTIC ADVANTAGE TACTICAL GOVT STAINLESS NITRIDE MID-LENGTH BARREL - BLACK BABL223016PQ. Add to Cart. 223 wylde Sort By Price Low to High Price High to Low Most Popular Title Manufacturer Newest Oldest Availability 30 per page 60 per page 120 per page 180 per page 300 per page Page of 1. Search 223 Wylde Precision Upper. 223 Wylde is a hybrid. 5 Inch Complete AR 15 Pistol Upper 10. 223 Wylde Super Sniper Model The Super Sniper Base Price 2,475 (20" Fluted Crowned), 2,425 (20" Round Threaded), 2,475 (20" Fluted Threaded) There are times when extreme accuracy and rapid follow-up shots are the most important criteria when selecting a rifle. 223 Remington and 5. Complete Upper And Lower Complete. Both calibers are widely available and excellent for plinking. 56 NATO ammunition. Mil-Spec Upper Receiver machined from 7075 T6 aluminum. 223 Wylde chamber is able to handle a wider variety of ammunition without any concerns about over-pressurization or any loss of accuracy or muzzle velocity stemming from a wider freebore. 1" 223 Wylde 18 SS Twist. If youre looking for a long-range shooter you may want and 18 inch barrel. These barrels are perfect for completing your national competition rifle build with unmatched accuracy. 56 NATO. 223 Wylde Complete Uppers Grab a high quality 223 Wylde complete upper and shoot both 223 Remington and 5. 223 Wylde Complete Upper AR-15. BCA will ship one to your door for around. This is a highly accurate, precision machined, match grade barrel. Built with our match-grade stainless steel barrels and MLOK rails to build an extremely accurate AR. AR15 223 Wylde Complete 7. Muzzle threads measure 12" - 28tpi. Rainier Arms Match. IF DESIRING TO ADD BARREL TO MSF UPPER. 223 Wylde; Barrel Length 11. 5-inch match-grade barrel made from 416R Stainless Steel. 223 Wylde. The 14. 24" 223 WYLDE Stainless Steel Spiral Fluted Bull Barrel Complete Upper with BIPOD 699. AR-15 Blemished Upper Assembly 16 INCHES WYLDE SS SPIRAL FLUTED M-LOK . 56 NATO from the same AR-15 upper. Muzzle threads measure 12" - 28tpi. 56 NATO) MAKE UPPER YOURS, NEW IN BOX Description MADE BY UPPER YOURS CUSTOMS. 9 ounces. 24" 223 WYLDE Stainless Steel Spiral Fluted Bull Barrel Complete Upper with BIPOD 699. Daniel Defense DDM4 V7 16. 5 Inch Faxon. 2022 Author internazionale. 56 bullet profiles. Mil-Spec Upper Receiver machined from 7075 T6 aluminum. To match your barrel, check out our selection of. Both calibers are widely available and excellent for plinking. 223 Wylde is more accurate than 5. 99 Add to Cart. 56 NATO, and. 223 Rem. 223 Wylde Various Twists. 223 Wylde is a hybrid. 223 Wylde 16" 'Maverick' Stainless steel Match Grade Complete Rifle 18 Twist 15"Mlok Handguard Blood Orange (ZM54919) Toggle menu. 223 wylde (. Shotgun High Grade; Stocks. 15" Narrow Profile Free Float Rail machined from 6061 T6 aluminum. 223 Wylde5. Pinned and welded muzzle device. Aero Precision 20" 5. 223 Wylde is a hybrid chamber and was developed to accommodate the match grade civilian ammunition of the 223 Remington and the high-pressure . UPPER, COMPLETE, FORGED,. 15" Narrow Profile Free Float Rail machined from 6061 T6 aluminum. Able to accommodate both. 223 Wylde chamber (allows the Upper to fire 5. 99 Add to Cart. Nitrided 416R stainless steel provides the highest possible hardness and longest throat life available with match grade bore dimensions and bore finish. National Match Grade 5. 3-Gun Competition AR 15 Upper Assembly. Criterion Barrels Inc Ar-15 Bull Barre, 24", 223 Wylde, Stainless Steel 299. 223 Wylde chamber is used by rifle manufacturers who sell "National Match" configuration AR-15 rifles, barrels and upper receivers. . free craigslist tampa