What The Heck Is An AR18? BRN-180 Upper For AR-15 Lowers
The Brownells BRN-180 upper receiver offers a modern adaptation of the classic AR-18/AR-180 design, featuring a short-stroke gas piston system and dual internal recoil springs. This design eliminates the need for a buffer tube, enabling the use of folding stocks and compatibility with standard AR-15 lower receivers. It aims to provide improved reliability by keeping fouling out of the receiver, making it a practical and enjoyable firearm for various uses.









