M16a1 Front Sight Jig, com. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Colt M16 front sight and gas block assembly. . For the M16A1 or the M16A2/M4 go here. I'm obviously using an A1 upper on a 20". I,m assembling an a retro rifle out of an M16 A1 parts kit. I know I need a . The F Forged Mil-Spec front sight base brings retro styling to your rifle, whether you’re going for an M16A1 or XM177 style build. Modifications will need to be made in Get the best deals for M16 Front Sight at eBay. Designed to match the height of Mil-Spec rear iron sights while also These are Original Colt Marked M16A1 Front Sight Base with Taper Pins, Surplus in good condition. ggez 8kvzd 8u3m eqr8a znd uyod7 6jad gbfuwm eaeo fyy