The Daniel Defense Big Hole Flat Top Upper is designed and built with a .315 front pin hole to fit the early Colt lowers with .315 front holes. This eliminates the need to use an offset pin, which requires 2 screwdrivers during assembly / disassembly of these rifles. This upper comes with our .315 Push Pin, which makes the assembly / disassembly of the upper and lower quick and easy. It has a detent ball to hold the pin securely in place.
Features:
- 7075-T6 Aluminum
- Mil-Spec Type III Hard Coat Anodized
- M4 Feed Ramps
- T-Marks
- Forward Assist
- DD Logo Laser Engraved on Left Side
- Includes .315 Push Pin with Ball Detent
- Made in the USA!