Impulse tech

feed necks are 32tpi, around .807" major dia. (Note that older feed necks were 28 tpi (just like Tribals), and the pre-relese guns were press-fit with loctite (no threads at all)).

valve lock screw is 7/16"-20

frame screws are 1/4"-20, 1" long

front cap is threaded 1"-16

Vision Impulse uses the same Lumex eye that equipped E-Mags do.

Defiance says the solenoid connector on the board is a JST S2B-PH-SM3-TB.