The Dirty Bird A2 2-Stage Lower Build Kit includes everything you need to finish your lower receiver, including the brand-new Dirty Bird 2-Stage Trigger Group.
KAK AR-15 A2 Buttstock Kit – Black
- Polymer A2 Stock w/ Storage Compartment
- A2 Extension Tube
- A2 Receiver Extension / Buffer Tube
- Chrome Silicon A2 Rifle Buffer Spring
- A2 Spacer
- Assembly Screw
Dirty Bird 2-Stage Trigger Group
This trigger assembly takes advantage of a two stage fire control design that has been trusted in both competition and combat roles for decades. Springs are tuned to provide a smooth first stage pull of about 1.5lbs and a crisp second stage break at 3lb for a total pull weight of 4.5lbs (actual total pull weight may vary ± .5lb). The 4.5lb total weight gives the operator a greater level of safety and control in high stress environments but with a second stage pull weight of only 3lbs, the shooter can also squeeze off long range precision shots with ease.
Dirty Bird AR-15 Lower Parts Kit Minus FCG & Pistol Grip
- 100% American Made Kit
- Includes extra takedown / pivot pin detent and detent spring
- Includes enhanced polymer trigger guard