The CMMG 10-Round .338 ARC Magazine for AR-15 (part no. 34AFC6B) is a 10-round .338 ARC magazine built to fit the AR-15. CMMG builds it in black polymer for reliable feeding and a secure fit in the magazine well. It’s a solid pick for shooters who want a dependable spare for range, duty, and home-defense use. Whether you’re stocking up on spares or replacing a worn-out magazine, the CMMG 10-Round .338 ARC Magazine for AR-15 is built to run when you need it.

Key Specifications

• Chambered for .338 ARC ammunition.
• Holds 10 rounds per magazine.
• Built to fit the AR-15.
• Finished in black polymer for a durable, distinctive build.
• Weighs about 0.23 lb, light enough to carry as a spare.
• Uses an anti-tilt follower so rounds feed straight even under uneven pressure.
• Uses a high-visibility yellow follower for quick round-count checks.
• Built to a state-compliant capacity where required by local law.
• Backed by the manufacturer’s warranty.
• Manufactured by CMMG.

Frequently Asked Questions

How many rounds does the CMMG 10-Round .338 ARC Magazine for AR-15 hold? It holds 10 rounds of .338 ARC.

What does the CMMG 10-Round .338 ARC Magazine for AR-15 fit? It’s built to fit the AR-15. Always confirm fit against your exact make and model before ordering.

What finish does the CMMG 10-Round .338 ARC Magazine for AR-15 come in? It’s finished in black polymer.

Buy the CMMG 10-Round .338 ARC Magazine for AR-15

Order the CMMG 10-Round .338 ARC Magazine for AR-15 from our Lubbock, Texas gun shop for fast shipping. Browse more AR-15 magazines at Schaefer Defense.