LMT Defense Standard Semi-Auto 5.56 NATO Bolt Carrier Assembly, No Bolt

LMT Defense Semi-Auto 5.56 Bolt Carrier - R-L7A3A / L7A3A

Features

The LMT Defense Semi-Auto 5.56 Bolt Carrier (R-L7A3A) is a precision-machined, mil-spec quality carrier designed for direct impingement AR-15 platforms. This is the carrier only — does not include the bolt, firing pin, cam pin, or retaining pin — making it ideal for custom builds or as a replacement part. Manufactured to LMT’s legendary standards and test-fired at the factory, it offers reliable function across multiple calibers including 5.56 NATO, .223 Remington, .300 BLK, .204 Ruger, and 6.8 SPC. The carrier features standard semi-auto geometry optimized for smooth cycling and long-term durability in semi-automatic rifles.

Specifications

• Manufacturer: LMT Defense (Lewis Machine & Tool)
• Model: Semi-Auto 5.56 Bolt Carrier
• SKU: R-L7A3A / L7A3A
• Caliber: 5.56×45 / .223 Rem (.204 RU, .300 BLK, 6.8 SPC compatible)
• Weight: 0.566 lbs
• Operating System: Direct Impingement
• Type: Carrier Only (semi-auto profile)
• Finish: Manganese Phosphate
• Compatibility: Standard AR-15 / M4 uppers

Why the LMT Defense Standard Semi-Auto 5.56 Bolt Carrier?

LMT’s semi-auto carrier provides unmatched reliability and longevity for your AR-15 build or repair. Its precise machining ensures consistent lockup and smooth operation, reducing wear on other components while maintaining factory-level performance.

Ready to upgrade or repair with genuine LMT quality? Add the LMT Defense Semi-Auto 5.56 Bolt Carrier R-L7A3A to your cart at Battlehawk Armory today.