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 beefed up 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 six positions of adjustment to fit nearly everyone.