Kit includes
• 3D Printed Carbon Fiber Nylon Three Position Selector
• Assembled 3D Printed Internal Activator and Lever with a 3D Printed Carbon Fiber Nylon Housing
• AR-15 Pistol Grip (Grip will vary)
• Standard Trigger Guard
• Semi Trigger
• Semi Hammer
• Semi Disconnector
• Semi Selector
• Bolt Catch Spring
• Detent Spring
• Bolt Catch Buffer
• Take Down Detent
• Bolt Catch
• Magazine Catch Spring
• Bolt Catch Roll Pin
• Magazine Catch Button
• Magazine Catch
• Front Pivot Pin
• Hammer Spring
• Trigger Spring
• Pistol Grip Screw
• Pistol Grip Lock Washer
• Selector Spring
• Detent Selector
• Hammer Pin
• Trigger Pin
• Take Down Pin
• Buffer Retainer Pin
• Buffer Retainer Spring
• Disconnector Spring
Compatibility
This drop-in is designed only for the AR-15 platform — it will not work in a CMMG .22 or an AR-9, as those use different levers. Mil-spec triggers are the only triggers fully confirmed for compatibility at this time; your mil-spec trigger does not require modification and will work as-is once the unit is fitted correctly. Other trigger types may work but are untested.
The system has been successfully fitted to many popular AR-15 builds, including PSA, Aero Precision, Anderson, Daniel Defense, Core15, and DPMS. While these brands have been tested and do work, we cannot guarantee fitment in every rifle platform.
These require an M16 bolt carrier groups, and an H3 non-solid buffer weight to function as intended.
Installation & Fitment Notes
On the assembled version, there are two prongs on the drop-in that push both sides of the trigger to cause it to reset. If the part won’t fully seat during installation, the smaller prong on the right is usually contacting the disconnector. Gently bend that leg outward a small amount with pliers so it clears the disconnector, and the rifle will close. This feature is intentional — the design prevents the unit from being modified or functioning like a DIAS.
Buffer Requirement
A heavier buffer weight (H2–H3) is required — do not use a solid buffer.
**(This item cannot be shipped to the following locations**
NV,CA, CT, CO, DE, FL, HI, IA, IL, MA, MD, MN, NJ, NY, RI, WA, DC, Puerto Rico.
**Orders from these locations will be canceled and refunded.**
