The times of sending off your Sig Cross to have the barrel changed is over with Proof’s drop-in barrel Design! Stand-alone and guaranteed to headspace is achievable at your own home with no gunsmith required!
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!
