This Mercury Precision Nickel Boron Coated LR-308 BCG is Compatible with 6.5 Creedmoor, .308 Win , .243 Win & All Similar Calibers.
Mercury Precision Has Made This BCG Using the Highest Quality Materials
Fully assembled and ready to drop into your .308 Build. Carrier is made with 8620 hardened steel
The Bolt Head is Made from 9310 Vac-Arc Premium Carburizing Steel which has a high core hardness and high fatigue strength unlike standard Hot/Cold rolled 9310 steels.
This bolt carrier assembly has enhanced features for those looking to complete an Upper Receiver set up or to simply replace an existing bolt carrier group. The Nickel Boron coating has a rockwell hardness value of 74 giving it almost the same strength as a Nitride BCG but also provides the self-lubricating exterior allowing this BCG to run smoother while being able to be cleaned easier. This BCG still requires necessary lubrication and/or oil. This finish will not peel or flake.
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Power Spring Kit
Brand: Mercury Precision
Caliber: .308 WIN/ 6.5 Creedmoor/ .243 WIN
Bolt Head Finish: Nickle Boron
Bolt Head Material: 9310 Alloy Steel
Carrier Finish: Nickle Boron
Carrier Material: 8620 Alloy Steel
Magnetic Particle Inspect (MPI): Yes
Forward Assist Notches: Yes
Full Auto Compatible: Yes
Please note: If the listing says "In-Stock" it means we have all of the items in stock. Please check this LINK to view our most up to date shipping status.
Warranty, Returns & Terms: MMC Armory offers a 30 day return, refund and exchange policy. You must email or call MMC Armory and obtain an RMA number prior to any return, refund, or exchange. All returns must include the original order number, receipt or invoice, along with the billing address, shipping address, contact phone numbers, contact emails, and RMA number. Returns, refunds, and exchanges may take up to two weeks, not including transit times, for processing after we receive it. Return shipping costs will be the responsibility of the returning party, with the exception of the wrong item being received or on warranty exchange during the first 30 days after delivery. Items returned for warranty will only be replaced or exchanged, not refunded.