CMC Triggers | AR-15 LPK w/ Curved 3–3.5 lb Trigger

This CMC Triggers AR-15 lower receiver parts kit supplies the essential components needed to assemble or refresh an AR-15 lower with an enhanced curved single-stage trigger. The kit pairs a non-adjustable curved trigger rated at 3–3.5 lb pull with a MIL-SPEC-compatible set of lower parts in a steel and aluminum mix. It fits small-pin AR-15 lowers (standard .156″ pin spacing) and is intended for builders and armorers seeking a reliable, lighter-pull single-stage trigger for target work and competition setups.

Product Specifications

• The trigger is a curved single-stage design with a pull weight of 3–3.5 lb.
• The kit is configured for a small-pin AR-15 (.156″ pin) lower.
• The primary materials are listed as steel and aluminum.
• The product type is a lower receiver parts kit that does not include a pistol grip.
• The kit includes essential lower components such as a bolt catch, mag release, buffer retainer, safety, trigger guard, take-down pins, and the trigger; listed components meet or exceed MIL-SPEC.
• The finish/style is described as small pin AR-15.
• The item is marked as compatible with most AR-15 rifles.
• The kit features an enhanced trigger guard as part of the included components.
• The trigger is specified as non-adjustable.
• The packaging dimensions are listed as 1.15 x 5.30 x 8.75 inches.
• The listed package dimensions include a height of 1.1500 inches, a width of 5.3000 inches, and a length of 8.7500 inches.
• The listed package weight is 0.4 (unit unspecified).
• This item is not available for direct ship to California.
• The UPC is 859464006000.

This lower parts kit is practical for assembling a precision-minded AR-15 lower or upgrading an existing build where a lighter, consistent single-stage pull is desired. The curved trigger profile aids in intuitive finger placement for disciplined trigger control during precision and competition shooting. Built from steel and aluminum components to MIL-SPEC standards, the kit provides the core hardware needed for a functional, serviceable lower while omitting the grip for buyer choice.