5.56MM COMPLETE UPPER RECEIVER W/BRN BOLT CARRIER GROUP 100042977 -

5.56MM COMPLETE UPPER RECEIVER W/BRN BOLT CARRIER GROUP 100042977 AR-15 Uppers: 5.56mm Complete Upper Receiver AR15 with BRN Bolt Carrier Group 16" Barrel M4 Feed Ramp 100042977—5.56mm complete upper receiver w/brn bolt carrier group 100042977. Ar15 556 upper brn bcg. 100042977 100042977: 5.56 COMPLETE UPPER W/BRN BCG. 5.56mm AR-15 Complete Upper Receiver with Brownells BRN-Proto BCG M16 Profile 16 Inch Barrel 1:7 Twist A2 Flash Hider M4 Handguard Forged 7075-T6 Mil Spec Phosphate Coated Reliable Full Auto Rated Gas Block Pinned 5.56MM COMPLETE UPPER RECEIVER W/BRN BOLT CARRIER GROUP 100042977. "Ready to run upper!" BRN. Pros and Cons Pros: 100042977 5.56 Upper BRN BCG included 16" chrome lined bbl M4 feed ramps Full auto carrier Phosphate finish A2 muzzle stable Mil spec quality Drop in ready Budget build Cons: Basic furniture Fixed gas block Upper 100042977. 5.56 AR15 Complete Upper BRN BCG 100042977 "5.56MM COMPLETE UPPER RECEIVER W/BRN BOLT CARRIER GROUP 100042977." 556UpperBRN. AR15CompleteUpper. 5.56mm complete upper receiver w/brn bolt carrier group 100042977 premium ar15 556 16" barrel m4 ramp brn-proto bcg phosphate mil spec reliable full auto gas block build ready. The End