to original colt specs each part is gauge-checked during assembly for correct tolerances ... 3d99h63 124.54 flattop upper receivers varmint ... rifle-length free-float handguard has 12 left right and bottom rails extending ... a strengthening ridge over the receiver extension threads and a ridge around the mag ... button to guard against accidental magazine drop by preventing unintentional button ... control system pistol grip receiver extension buffer spring and buttstock installed ... available separately and the receiver extension/buttstock system of your choice specs ...
u 7 u 35 ar-15/m16 u 6 u 5 u 4 u 10 u 12 u 13 u 14 u 1 u 2 u 3 u 8 u 19 u 20 u ... u 32 u 31 u 34 u 16 u 37 u 38 u 36 u 9 12 ounce ballpeen hammer heavy enough to ... /removal of solid and roll pins specs 12¼ 31.1cm long overall 1 lb 454 g 6 oz ... 1 2.5cm diameter peen #956-000-001ee 12 oz ballpeen 6e11u61 14.72 ... -181ee magna-tip® #81 8k10v30 12.30 ® u 39 u 40 magna-tip stubby handle ... 42 u 44 u 45 u 46 firing pin protrusion gauge essential for properly measuring the ... #080-216-013ee ar-15/m16 firing/pin gauge 8k27a63 34.97 ... 4.95 barrel nut alignment gauge fits into the end of the bolt carrier ... long #080-216-014ee barrel nut align gauge 8k04a56 5.95 5.56mm 223 headspace ... gauge measures maximum headspace essential ... been rebarreled not a regular field gauge but made to colt factory dimensions ...