The LMT MRP 300 Blackout barrels are a proprietary design for the LMT MRP AR-15 Upper Receivers.
A unique design, the Lewis Machine & Tool AR-15 MRP Upper Receiver allows the end user to swap barrels quickly and conveniently for flexibility in caliber, length, and even gas system.
These 300 Blackout barrels feature a DI gas system, chrome lining, a 1-7” twist rate, and are available in 10.5” and 16” lengths.
- 300 Blackout
- MRP compatible
- 1-7 twist
- Chrome lined
- A2 style flash hider
Give your LMT MRP Upper Receiver caliber versatility with a 300 Blackout barrel.
Note: 10.5” barrel should not be used with MRP Rifle length Upper Receiver.
All NFA rules apply!
Big Book Catalog, Issue:72, Page:027