The Guntec USA Bolt Carrier Group is a tough and reliable BCG that works perfectly in any AR10 platform weapon. These Bolt Carrier Groups from Guntec USA have a properly-tightened and gas key staked properly, so users don’t need to worry about damaging their BCG’s finish. For even further corrosion resistance, the Guntec USA AR-10 Bolt Carrier Group is Nitride Treated – the black finish is much more durable than other finishes, and it’s heat-treated to H900 condition, giving it extra-strength resistance. For ease of use, this Bolt Carrier Group from Guntec USA has a Nitride-treated 8620 carrier, which allows the shooter to easily keep the bolt carrier group apart for cleaning. A properly-tightened gas key properly secures this BCG, giving users of this device a more reliable and dependable firearm. For a dependable, corrosion-resistant and tough BCG, make sure you grab the Guntec USA AR-10 Bolt Carrier Group. Specifications for Guntec Usa Guntec Bolt Carrier Group (BCG) Ar10 .308 Mil-spec Nitride: Manufacturer: Guntec USA Color: Black Finish: Nitride Fabric/Material: Steel Cartridge: .308 Winchester Gun Make: AR Platform Gun Model: AR-10 Bolt Material: 9310 Steel Carrier Material: 8620 Steel Caliber: .308 Caliber Features: Made for 7.62X51 / 308 Cal 9310 Hardened Steel Bolt, 17-4 Stainless Steel Firing Pin (Heat treated to H900 Condition) The group comes fully assembled with properly torqued and staked gas key Nitride Treated 8620 carrier and gas key. HPT/MPI Tested and Marked Hardened extractor S7 tool steel. Package Contents: Guntec Usa Guntec Bolt Carrier Group Ar10 .308 Mil-spec Nitride The Guntec Usa Guntec Bolt Carrier Group Ar10 .308 Mil-spec Nitride is a quality addition to the Guntec USA lineup. For more great deals on Bolt Carrier Groups by Guntec USA, please browse our GUNTEC USA Gun Parts page.
Michael Ambuehl –
I decided to run the Guntec AR10 BCG for a variety of reasons. Price, reputation, and quality. I don't have thousands of rounds on mine yet but so far it's been flawless. It's a new rifle build with a bunch of random parts, some of which were limited run or design change parts (think mix of AR10 and SR25 patterns) so I was expecting chaos. Either I'm lucky, or this BCG is running well. I haven't have too many issues with the rifle over all and none of those had to do with this. I feel pretty confident on piece and wouldn't hesitate to grab another if I need one.