AR-15 .204 20" Diamond Stainless Steel Complete Upper Receiver

AR-15 .204 20" Diamond Stainless Steel Complete Upper Receiver

AR-15 .204 20" Diamond Complete Upper Receiver is your next generation varmint long range build.  This upper takes all the standard AR-15 components. No other modifications to your AR-15 rifle is required - uses your standard 5.56 BCG, Charging Handle and magazines. All you need is this upper to go into a completely new caliber - .204. The upper is custom build to order, please allow 7-10 days for completion.

Upper Includes:

·        Assembled AR-15 Upper Receiver 

·         Enhanced Slim Profile Handguard 

·         20" .204 Stainless Steel Barrel, Diamond Fluted

·         Low Profile Gas Block and Rifle Length Gas Tube

·         Product comes assembled

·         This complete upper does not include a BCG or Charging Handle. These products may be selected as add-ons.

Barrel - 20" 416 stainless steel bull barrel, diamond flutes.  Nitrite Plating is hand-made, done upon request. Hardened to 26-32 rc and stress relieved.  Chambered in .204 with 1-12 rh twist. .936 under gas block. Threaded 1/2X28. M4 feedramps. Rifle gas system. Barrel is finished off by our stainless steel Competition Muzzle Brake. 

A3 flat top upper receiver - made from certified 7075-T6 aluminum forgings. Black hardcoat anodized to Gov. Specs.  Forward assist and dust cover installed. M4 feedramps.

Gas system - .936 low profile gas block, made from aircraft quality aluminum. Rifle length gas tube.

Handguards - 15" rifle-length keymod free float rail. Made from aircraft quality aluminum and black hard coat anodized.  Rails may differ in design, based on stock availability, the same excellent quality. Also, you may choose quadrail option available on top of this page.