That's right. SP1's didn't have forward assists. But M16A1's did. And that's what these are, despite CDNN listing them as SP1 uppers. And about time you got one twonami. You'll love the light weight. |
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I have an old school original SP1. No forward assist. I'd love to get CDNN M16A1 upper just so I could have the forward assist. But then I would have an extra upper. Too nice to sell, and my original equipment. So then I would just HAVE to buy another lower and build it up. There is no stop to the madness that is BRD ................ To the o_p, nice build ! |
I think it was a sight issue. They were way off and they were unable to adjust it any further. |
BRAND NEW • Colt Factory SP1 Upper Assmebly • Tear Drop Forward Assist • Triangular Handguards • 20" Chrome Lined Barrel with Flash Hider • Small Hole Upper • SP1 Sights • No Shell Deflector • Light Weight Barrel • NO BOLT, BOLT CARRIER OR CHARGING HANDLE!! www.cdnninvestments.com/arsp1upnewco.html |


