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ALG Defense Bolt Carrier Group (BCG) - Mil-Spec Phosphate (R)

The ALG Phosphate Mil-Spec Bolt Carrier Group (BCG) is a great replacement or backup for your current AR, or a perfect starting point for your next build. The Bolt is CNC ground after heat treat for true Mil Spec dimensionís and fit. Made of case hardened 9310 steel, shot peened, and ships with the Crane O ring installed. Our bolts are High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI).

The Carrier is made of 8620 steel, the gas key is 4130 steel and is attached with Grade 8 hardware and properly staked. The ALG Phosphate BCG is compatible with AR15 rifles chambered in .223/5.56, .300 Blackout, and 6.8 SPC.†

ALG Defense Bolt Carrier Group (BCG) - Mil-Spec Phosphate (R)
Items marked "(R)" No Export, No Paypal, NO EXCEPTIONS

Contact Us:
Phone: 919 818-3649
Address: 2533 Atlantic Ave, Suite 103, Raleigh, NC 27604

Phone Hours: Monday-Friday, 8am - 4pm Eastern Standard Time (EST)
Walk-In Customers Welcome from 10am - 3pm!

$5 Standard Shipping to any US or APO/FPO Address!
UPS Shipping Options: Orders must be placed by 12pm EST in order ensure they go out the same day. Orders are not processed on the weekends.
International Rates, see the left margin tab marked "CONTACT / POLICIES"

100 % Disabled Veteran-Owned Small Business, we accept GPC Cards and Government Contracts
CAGE: 5MU18 / DUNS: 361562593