Wilson Combat TRWMAG30B 30rd 5.56/300BO/300HAMR Fits AR-15 Black

AR-15 shooters across the Bay Area—from Alameda to beyond—rely on quality magazines that feed reliably under real conditions. The Wilson Combat 30-round magazine handles 5.56, 300 Blackout, and 300 HAMR with consistent performance. Understanding what works with your rifle matters, especially when California law shapes what's available. Review California firearm laws to confirm your setup meets requirements.

Multi-caliber design for AR platform rifles

This magazine accepts three common intermediate cartridges without modification—5.56 NATO, 300 Blackout, and 300 HAMR all feed through the same 30-round body. The engineering accommodates slight dimensional differences across these rounds while maintaining feed reliability. Shooters building AR-15s with caliber flexibility appreciate a single magazine solution. For details on specific firearm eligibility in California, see PC §32100 exempt revolvers for related compliance context. Visit our firearms dealer in Sunnyvale for our full catalog.

Frequently asked questions

Will this Wilson Combat magazine work with my AR-15 in all three calibers?

Yes. The TRWMAG30B is designed to reliably feed 5.56 NATO, 300 Blackout, and 300 HAMR in standard AR-15 platforms. Verify your specific rifle's magazine well dimensions before purchase.

What is the actual round capacity—is it truly 30+1?

The magazine holds 30 rounds plus one in the chamber (30+1 total). Magazine capacity is 30 rounds; the additional round refers to chambering a loaded round in the rifle itself.

Can I transfer ammo through an FFL in Sunnyvale?

Yes — TacticCAL processes ammunition shipments from online sellers under California's ammunition eligibility check requirements. TacticCAL is your gun shop Oakland in the Bay Area.