Original Thread: http://forums.offtopic.com/showthread.php?t=4220329 Upper: CMMG M4gery Lower: DPMS with a Stainless Steel RGUNS LPK I got my LPK in the mail today and was finally able to complete the build. However my kit was being pretty ghey. I had to put the safety in before I put in the hammer and for the first 40 or so rounds the hammer was hanging up on the disconnect and I had to keep pulling the trigger twice to get it to fire. Fortunately it loosened up and functioned normally as I went through some more ammo. Overall I'm quite pleased. I went through 150 rounds which I calculated out to be $64.50 at the price I bought it I'm thinking of getting a .22 conversion kit. I've got a MOE hand guard and a MAID Grip on order with Magpul but they're being really slow about shipping. Its been over a week and it still hasn't shipped. Does anyone know what advantages there are to a stainless LPK?