Alexander Arms R300ST Standard 300 Blackout 30+1 16″ Barrel, Black Anodized Receiver, Black Adaptive Tactical EFX Stock, Black Polymer Grip, Optics Ready

This model of the Standard rifle is chambered in 300 Blk, and features a black anodized finish. It has an 16″ barrel with an A2 flash hider muzzle device, and has a twist rate of 1:7″. It features a M-Lok handgaurd with a Adaptive Tactical EFX Stock.

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!