Description
This Rosco 10.5″ 300 Blackout barrel was designed for SBR and Pistol use in conjunction with suppressors. The 10.5″ 300 Blackout Rosco barrel was made to be a direct replacement for any MK 18 platforms that are currently in 5.56 NATO. The 10.5″ barrel is also perfect for carbines which require a slightly longer rail in order to run PEQ-15s, D-BAL (series), or any laser aiming devices comfortably.
Shop with Monadnock Firearms
Monadnock Firearms is your online destination for firearms, ammunition, and tactical gear—shipped nationwide. Established in 2017 and based in Fitzwilliam, NH, we combine expert service with a seamless eCommerce experience. Proud supporters of Gun Owners of America (GOA) and defenders of the Second Amendment.
- Best Prices and Deals
- Earn Rewards on Every Purchase.
- Safe & Secure Checkout – Shop with confidence using trusted payment options.
- Our loyalty program to make your money go further
Limited Stock – Visit Us Today or Shop Online Before They’re Gone!
