So today at work, a guy I know comes in with a few full auto guns. A Colt AR-15 9mm, & a V51P. I have a 51 in semi, & it's a blast to shoot. So I first shoot his 9mm gun, & it's a blast & easy to empty a mag in a few seconds. The V51P was brutal, & I would only shoot short bursts of 8 or 10 rounds at a time. It had a buttstock but was still insane. I had to hold onto the mag as the front handguard was too hot to hold. I used thermold mags, & had no problem. While it was fun, should I ever get a full auto gun, it won't be a 308. GARY N4KVE