TheMK12 Mod H upper is 16.5" barreled upper with capable MOA accuracy.  The flat top receiver has a Gas Buster® charging handle with military big latch, Pri rifle length black finished forearm, recce top rail that connects to the forearm rail.  The upper also comes with a bolt carrier group, PRi's rail mounted flip up front and rear sights and AE brake and collar.  The upper is designed to have two levels of top rails for mounting of night vision in front of scopes.  All uppers are assembled cleaned and tested before shipping. Please allow 5~10 days for assembly and testing before ship date.  Barrels are Douglas 416 stainless steel with 1-8 twist with M4 feed ramps,
PRI Mark 12 Mod. H
 

1. Caliber ......................................5.56/.223

1. Upper Receiver ........................Forged T6 7075 Hard coat anodized aluminum
2. Barrel.......16".........5.56 Douglas 416 stainless steel with M4 feed ramps 1-8 twist
3. Gas Block...................Low Profile gas block with 2 set screws for securing
4. Forearm.........................................................Rifle length 
5. Rails..........................................all rails plus Recce top rail
6. BUIS...................................Front and Rear rail mount sights
7. Muzzle Brake.............................1/2 x 28 threaded AE brake and Collar  
8. Overall Length....................................................25 Inches
9. Overall Weight...................................................5.7 pounds