Originally Posted by desertT1
Hammer7 and AR15 will not mesh. The thread on the tip of the Spyder barrel is 7/8-16. Probably looking at LAPCO, and I know that Hammerhead tips will fit.
It's 16 TPI? Are you sure, because that seems kind of coarse to me... I don't have my H7 in front of me or I'd check it myself...