Hi John, It will accept larger .308 magazines.Here is a 20 round one budsgunshop.com/catalog/product_info.php/products_id/82727 - Specifications and Features:
.308 Winchester caliber
Semi automatic direct gas impingement 18" fluted medium profile 4150M Chrome Moly Vanadium steel barrel with chrome lined bore
1:10" twist
5 rounds capacity
Flat top receiver with Picatinny rail
Hogue overmolded pistol grip
Nutmeg finish laminated hardwood stock and forend
Overall length 39.5"
Weight 8.5 lbs empty
Coyote brown

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