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A*B Arms A*B Pro 5.56 Bolt Carrier Group is built to Mil-Spec dimensions. The Nickel Boron coated Bolt and Cam Pin need virtually no lube during use. The Nickel Boron coated Carrier is coated for extra lubricity and the extractor has a surface finish that provides superior extraction during firing.
These Bolt Carrier Groups are ready to drop into your rifle. Our Bolt Carrier Groups are specially made on high-end, Swiss machinery to have exacting tolerances and surface finish. A*B Arms is known by rifle manufacturers for manufacturing one of the finest quality bolts and extractors available. This has won us contracts with some of the highest quality AR manufacturers in the business. If you want to buy super high-quality parts offered by the company that actually manufactures them, then you’ve come to the right place.
These Bolt Carrier Groups are ready to drop into your rifle. Our Bolt Carrier Groups are specially made on high-end, Swiss machinery to have exacting tolerances and surface finish. A*B Arms is known by rifle manufacturers for manufacturing one of the finest quality bolts and extractors available. This has won us contracts with some of the highest quality AR manufacturers in the business. If you want to buy super high-quality parts offered by the company that actually manufactures them, then you’ve come to the right place.
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