Fired 10 rounds to zero. I have receipts for everything. Gun details as follows: STI international stripped lower receiver CCMG lower parts kit Riverman Gun Works A2 buffer tube and spring assembly USGI A2 buttstock with hardware additional DPMS buttplate with hardware Aero Precision A2 stripped upper receiver Mil Spec upper parts kit. (Forward assist, dust cover ect) DPMS A2 rear sight assembly Mil Spec A2 front sight post/ assembly Government profile 20" chrome lined barrel 1/7 twist Riverman Gun Works charging handle SAA Frankenbolt USGI handguard Mil Spec flash hider Colt 20 round mag USGI 30 round mag Also comes with 2 boxes of federal 5.56, an upper receiver vice block, a2 front and rear sight tools and a soft case. $850 firm. If interested, please call or text 425 760 2653 as I don't check this website often. Thanks for looking.