RRA "Oh Shoot" Kit

Rock River Arms "Oh Shoot" Kit. Comes complete with 1 crush washer, 1 gas tube roll pin, 1 front sight detent and spring, 1 front sling swivel rivet, 1 charging handle latch roll pin, 2 firing pin retaining pins, 1 ejector, 1 ejector spring, 1 safety detent, 1 safety detent spring, 2 pivot pin springs, 2 pivot pin detents, 1 buffer retainer, 1 buffer retainer spring, 2 takedown pin springs, 2 takedown pin detents.