Emerging Tactical Solutions
Crucible AR-15 Bolt Carrier Group
The Crucible AR-15 Bolt Carrier Group is a high reliability upgrade to your current system and only available through Emerging Tactical Solutions. The Crucible is a Semi-Auto Bolt Carrier housing, Chrome Gas Key (Properly staked), Chrome Bolt with extractor spring and O-ring, and upgraded with POF-USA’s Roller Cam Pin.
POF-USA .223 Roller Cam Pin Up-grade Kit
AR-15 Castle Nut
POF-USA AR-15 Firing Pin
Carbine H Buffer
POF-USA .223 Carbine Buffer Tube
AR-15 Extractor Spring
Rock River Arms Lower Parts Kit
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