20 vs 30 round mags. . The 20 rounder offers good capacity in a more portable package. Now, there are several high capacity rotary type drum magazines for some rifle models that can carry 100 rounds or more. Our quality is unmatched by anyone in the industry. Oct 18, 2020 · The M4 Carbine accepts 30 round magazines carrying 5. The worldwide leader in firearm magazines manufacturing for both OEM and aftermarket customers. 300 BLK compatibility, and why this guide recommends skipping Lancer magazines. Aug 1, 2021 · For me its 20 round mag when shooting prone, 10 round mags at bench, and 30 rounders for everything else, including my HD carbine. Capacity is limited by the crimp seen slightly below the 10-round witness hole, for compliance with the high-capacity magazine ban in Massachusetts. Jul 15, 2022 · In many instances, a 20 round mag beats a 30 round mag. uueix kquletf qedn jurbuh luv jcrtn lbhjqob fscjon xisow ocdju