3-round magazine 3.850" in overall length Weighs 2.3 ounces Max COAL length 3.630" Sturdy, impact resistant polymer Cerakote ready surface Stainless steel spring, non-memory, non-corrosive. Light & Stays quiet when inserted into magwell Clicks in high and tight into CIP Length M5 bottom metal and Universal Mini Chassis. Fits the following calibers: .30-06 Springfield .270 Winchester .280 AI .280 Remington 7mm backcountry