Ultra Light Weight Extended Titanium Pivot / Takedown Pins by Bishop Ammunition. These extended titanium takedown and pivot pins are for the AR-15 rifle. Titanium is stronger than steel and 40% lighter. Made out of Grade 5 Titanium and will out live your rifle. Weighs only 0.018 oz.

Titanium Castle Nut for AR-15 and AR-10 Rifles