Dirty Bird Industries’ pin and spring kits are everything builders need and nothing they don’t. The most minimal of lower parts kits, this kit allows builders to select their own controls (bolt catch, mag catch assembly and safety selector), trigger group, trigger guard and grip. As a bonus, this kit includes an extra pivot / takedown pin detent and spring. The kit includes the following mil-spec parts: Trigger / Hammer Pins (x2) Takedown Pin Pivot Pin Takedown / Pivot Pin Springs (x3) Takedown / Pivot Pin Detents (x3) Safety Selector Detent Safety Selector Detent Spring

Dirty Bird Industries’ pin and spring kits are everything builders need and nothing they don’t. The most minimal of lower parts kits, this kit allows builders to select their own controls (bolt catch, mag catch assembly and safety selector), trigger group, trigger guard and grip. As a bonus, this kit includes an extra pivot / takedown pin detent and spring. The kit includes the following mil-spec parts: Trigger / Hammer Pins (x2) Takedown Pin Pivot Pin Takedown / Pivot Pin Springs (x3) Takedown / Pivot Pin Detents (x3) Safety Selector Detent Safety Selector Detent Spring