With the reduced receiver size, the POF USA Revolution AR-10 Semi-Auto Rifle is truly revolutionary. The Revolution is small enough compared to most .308 Win ARs, it feels much more like a 5.56 NATO AR-15 in hand. The rifle comes with fluted barrel guarded by a full-length free-floated rail complete with M-LOK slots and Picatinny rails on the business end at the 3, 6, 9, and 12 o'clock positions. The Revolution actually uses AR-15 small parts; such as the charging handle, cam pin, bolt carrier, buffer, heat sink barrel nut, handguard, and 5-position gas piston system. The barrel extension, bolt assembly, upper receiver, and lower receiver (other than magwell) are the same as what's on the AR-15. With the single-stage match trigger and fully-ambidextrous receiver set, POF has an exceptional offering that you'll definitely want to feel in your own hands. Weighs 7.3 lbs. AR-10 power with reduced receiver to AR-15 size Fluted barrel Full-length free-float rail with M-LOK and QD slots Utilizes many AR-15 parts instead of AR-10 Open to more modifications Single-stage match-grade trigger Ambi controls