Apex Tactical 107003 Action Enhancement Black Drop-In, Fits S&W SD9/40/357, SDVE9/40/357, Sigma $47.50
Apex Tactical 102116 Action Enhancement Black Drop-in Trigger, Compatible w/Glock Gen5 17/19/19X/26/34/45 $128.25
Apex Tactical 100171 Action Enhancement Trigger & Duty/Carry Kit Black Drop-In Fits S&W M&P Shield 2.0 9/40 $156.75