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  3. United Defense LR-308 Complete Bolt Carrier Assembly Nickel Boron Finish **Fits All .308 Win, 6.5 Creedmoor, 243 Win**

United Defense LR-308 Complete Bolt Carrier Assembly Nickel Boron Finish **Fits All .308 Win, 6.5 Creedmoor, 243 Win**

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On sale $349.99 $149.99
Retail Price:$349.99
Your Savings:$200.00(57%)
Part Number: 4523-3
Availability: In Stock

United DefenseLR-308 Complete Bolt Carrier 

Nickel Boron Finish

Fits All LR-308 AR Based Rifles 

This United Defense Standard Compatible .308 LR-308 Bolt Carrier Group Nickel Boron PW1 Coated.

Fits All LR-308 Platform Rifles Chambered In 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 is a Mil-Spec bolt carrier assembly with enhanced features for those looking to complete an Upper Receiver set up or to simply replacean existing bolt carrier group. The PW1 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 through several thousand rounds Without Lubrication or oil. This finish will not peel or flake.



- 8620 Steel Carrier PW1 Nickel Boron Coated

- 9310 Steel Bolt PW1 Nickel Boron Coated

- 4140 Steel Billet Machined Gas Key  Nickel Boron Coated

- Tool Steel Billet Machined Extractor  Nickel Boron Coated

- 4340 Steel Cam Pin  Nickel Boron Coated

- Properly Staked Gas Key

- Shot Peened

- Power Spring Kit

- MPI Tested

- Carrier Engraved with Made in USA

Please note: If the listing says "In-Stock" it means we have the item in stock. Please check this LINK to view our most up to date shipping status.

Warranty, Returns & Terms: Omega Tactical Distribution offers a 30 day return, refund and exchange policy. You must email/call Omega Tactical Distribution 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.