Strike Ultimate Dust Cover Capsule AR-15/M4/M16 Polymer Black 3.46"

The Strike Ultimate Dust Cover Capsule is a drop-in replacement dust cover for the AR-15, M4, and M16 platform, machined from durable black polymer and measuring 3.46" in length. Designed as a direct swap for the standard factory dust cover, it integrates cleanly with billet and forged uppers and fits AR-platform rifles chambered in .223/5.56.

The standout feature is an adjustable detent set screw that lets the shooter tune the opening tension of the cover. This makes it easy to compensate for wear on the receiver's detent track, increase or decrease opening resistance to taste, and keep the cover positively snapped shut under recoil.

Built from lightweight polymer with a matte black finish, the Capsule dust cover sheds grams over aluminum units while keeping a low visual signature on the rifle. The package includes the dust cover, spring, and pin so it is ready to install out of the box.

Key Features:

• Fits AR-15, M4, and M16 upper receivers (forged and billet)
• Adjustable detent set screw for tunable opening tension
• Lightweight black polymer construction, 3 oz
• 3.46" overall length
• Includes dust cover, spring, and pin