Alternate Caliber

M-15 alternate calibers have magazines designed for that specific round.  The 7.62X39 Russian round magazine comes in 10 and 30 round aluminum magazine.  The 6.8 SPC magazine comes in 10 and 25 round aluminum magzine in waffle design.
6.8 REM SPC 10 ROUND AR15 MAG
6.8 REM SPC 10 ROUND AR15 MAG
$35.00 EA
6.8 REM SPC 25 ROUND AR15 MAGAZINE
6.8 REM SPC 25 ROUND AR15 MAGAZINE
$30.80 EA
7.62X39 10 RND AR15 MAGAZINE
7.62X39 10 RND AR15 MAGAZINE
$18.00 EA
7.62X39 30 ROUND AR15 MAGAZINE
7.62X39 30 ROUND AR15 MAGAZINE
$18.00 EA
AR-24K 13 ROUND MAGAZINE
AR-24K 13 ROUND MAGAZINE
$30.00 EA
AR-24 15 ROUND MAGAZINE
AR-24 15 ROUND MAGAZINE
$30.00 EA