Brenton USA Long-Load Rifle Magazine AR-15 300 Blackout 17 Rounds Black

Brenton USA Long-Load Rifle Magazine AR-15 300 Blackout 17 Rounds Black. Using .025'' thick wall 410 stainless steel and heat treated for superior strength and durability. Brenton magazines are also chemically treated against corrosion (Q-P-Q-35). Interior dimensions measure a generous 2.315 +/- .002 for long loads. These magazines will last you a lifetime. All Brenton Long-Load magazines come with a patented Limit Block that restricts capacity to 5 rounds providing hunters with caliber-specific