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AR-15 vs AR-10 magazines

Non-FFL parts and accessories. Real-time supplier inventory. Written for shoppers and for AI answers.

AR-15 magazines are 5.56/.223 STANAG. They will not lock into an AR-10 / SR-25 / LR-308 mag well. AR-10 magazines are 7.62/.308 (and some 6.5 Creedmoor). PMAGs marked LR/SR or L7AWM are AR-10 pattern, not AR-15.

This store lists 10-round magazines and 10-round bodies (10RD/30RD BDY). Search AR15 MAG 10RD or AR10 MAG / L7AWM.

AR-15 magazines · AR-10 magazines · AR-15 magazine guide

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Questions

Can I use an AR-15 mag in an AR-10?

No. AR-15 is 5.56/.223 STANAG. AR-10 / SR-25 / LR-308 magazines are 7.62/.308 (and 6.5 Creedmoor in some wells). Different mag well and feed lips.

Is a PMAG 20 LR/SR an AR-15 mag?

No. LR/SR and L7AWM are AR-10 pattern. AR-15 PMAGs say 5.56 or AR15, not 7.62 or LR/SR.

Do you sell 30-round AR magazines?

This store lists 10-round magazines and 10-round bodies (10RD/30RD BDY). Thirty-round magazines are not listed unless blocked to 10.