Life is too short for poor-quality, bone-stock AR-15 components. If you're looking for something better, check out the DoubleStar® M4 Buttstock. It comes completely radiused of sharp edges, and is reinforced around the trigger latch area for added durability. Features a square hole design to allow sand, dust, and dirt to escape the tube area. Special body style is ribbed for extra strength.
The tube was specially designed with a lower lip that acts as a timing lip to insure the buffer retainer is held correctly and extension is positioned in the correct location. Dry film lubed for smooth action. Offers 6 positions of adjustment to fit nearly everyone.