The Ultradyne Apollo S Muzzle Brake in 5.56, threaded 1/2×28 (Ultradyne USA part no. UD10220) brings the Apollo S compensator design to the most common AR-15 chambering and thread pattern. Ultradyne USA manufactures the brake with the same precision machining the company applies across its muzzle device line, aimed at durable, reliable service life. It threads onto any 1/2×28 muzzle for a direct swap onto a compatible barrel. It is part of Ultradyne’s Apollo S family, a step below the flagship Apollo Max in the lineup.

Key Specifications

• Chambered specifically for 5.56 platforms.
• Threaded 1/2×28 for a direct swap onto a compatible barrel.
• Part of Ultradyne’s Apollo S muzzle device family.

Frequently Asked Questions

What caliber is this muzzle brake built for? It is built specifically for the 5.56 chambering.

How does the Apollo S compare to the Apollo Max? The Apollo S is a step below Ultradyne’s flagship Apollo Max in the lineup, at a lower price point.

Buy the Ultradyne Apollo S Muzzle Brake, 5.56 1/2×28

Order it from our Lubbock, Texas gun shop for fast, direct shipping and put Apollo S control on your 5.56 build. Browse more AR muzzle devices to compare options.