Material: SAE 1075 Spring Steel heat treated to 50 Rc, Electroless Nickel plate per MIL-C-26074E (military standard) and baked to remove embrittlement.

(SIZE 42/43) Connector will be compatible with Glock 43X, and Glock 48 firearms. 

(SIZE TTI/TC01/ULTIMATE) Will work on any full size glock.

The connector alone will not reduce the pull of the trigger by much. It will how ever give you a nice clean and more predictable trigger break.