Rosco AR-15 Bolt Carrier Group 5.56NATO/300 Blackout
ROS-BCG-001
- Carrier Material: 8620 Steel
- Gas Key: 4130 Steel, attached with Grade 8 hardware, properly staked
- Cam Pin: Hardened 4340
- Firing Pin: 8740 Steel, Mil-Spec, Center-less ground & Hard Chrome coated Bolt Material: 9310, Properly Heat treated, MPI/HPT
- Extractor: 4340 Steel
- Ejector: S7 Tool Steel
The Rosco Melonited Bolt Carrier Groups are designed to meet the modern-day carbine shooters requirements. They have also balanced input from their consumers and military end users in order to bring you the product you need, not just the one they want to sell you. All Rosco BCG's are to MIL Specification and have a properly staked gas key along with a Melonite coating for extended performance. They also feature a Shot Peened/ MP tested Matched bolt (with upgraded extractor) which is designed to lock up perfectly with their extensions for extreme accuracy. These BCG's are made to withstand Full-Auto rated fire and unforgiving use from the end user.
ROS-BCG-002
- Carrier Material: 8620 Steel
- Gas Key: 4130 Steel, attached with Grade 8 hardware, properly staked
- Cam Pin: Hardened 4340 Steel
- Firing Pin: 8740 Steel, Heat Treated, Mil-Spec, Center-less ground, Hard Chrome Plated
- Bolt Material: C158, , Phosphate Coated, MPI/HPT
- Extractor: 4140 Steel, Heat Treated, Shot Peened
- Ejector: S2-S7 Tool Steel, Shot Peened
- Phosphate/Chrome BCGs ship with upgraded Sprinco Extractor Kit
These 5.56 / 300 BLK Bolt Carrier Groups are Phosphate Coated with Chrome Lined Gas Key & Bolt Channel, Full-Auto rated, properly staked, and the bolts are Matched to the barrel. Their Rosco Phosphate Bolt Carrier Groups are designed to meet the modern-day carbine shooters requirements. For their Phosphate Bolt Carrier Groups - they choose to team up with the best - Microbest, so the end user has dependability time after time, every time. They have also balanced input from their consumers and military end users in order to bring you the product you need, not just the one they want to sell you. These BCG's are to MIL Specification and have a properly staked gas key along with a chrome lined coating for extended performance. They also feature a Shot Peened/ MP tested Matched bolt (with upgraded extractor) which is designed to lock up perfectly with their extensions for extreme accuracy. These BCG's are made to withstand Full-Auto rated fire and unforgiving use from the end user.
By purchasing Rosco AR-15 Bolt Carrier Group 5.56NATO/300 Blackout from our online store, you are guaranteed to receive a high-quality item. We work with trusted brands to offer shooting and hunting enthusiasts, both amateur and professional, quality products at a reasonable price. Choosing to buy from us means opting for quality and practicality