This Kit is for 9mm, .357 Sig and .40 S&W M&P Only
The APEX 45 Duty/Carry Action Enhancement Kit (DCAEK) was designed to provide the M&P (9 mm, .357 Sig & .40 only) pistol owner a smooth, consistent 5 - 5.5 lb trigger pull with the advantages of shorter over-travel and reduced reset.
The kit includes: * APEX Hard Sear (9 mm, .357 Sig & .40 series) * APEX M&P Ultimate Striker Block Kit (USB kit) * APEX M&P Increased Rate Sear Spring** (very small) & Trigger Return Spring
**PLEASE NOTE: the Sear Spring works for non-MA compliant pistols All of the components work together to provide a pull weight within the acceptable range for a top end service pistol. The kit itself is engineered to be drop-in and should require NO further gunsmithing.
Will not work with M&P 45, M&P M2.0, or M&P Shield.