Tyrant CNC Magazine Extension Features The Tyrant CNC Magazine Extension uses the company s NoBak retention plunger technology to slide onto the bottom of a Sig Sauer P320 magazine without tools making it the fastest installing extension of its kind. The entire installation happens in ten seconds or less and removing it is just as simple requiring only a push of the plunger to slide the base plate free. Machined from 6000 series aerospace grade aluminum the extension adds useful weight to the magazine s base pad helping it drop free and fast during a reload under pressure. This extension adds 5 rounds of capacity to a standard 9mm P320 magazine working on both the 15 round compact and 17 round full size magazines. An added knurled texture on the base pad gives shooters a sure grip to rip the magazine free in any condition speeding up reloads compared to smoother factory baseplates. A new power spring ships with every extension ensuring reliable feeding is not compromised by added capacity. The extension fits the AXG frame without its magwell and can fit Wilson Combat iCarus and Agency Arms frames with modification giving P320 owners broad compatibility across the aftermarket. For P320 shooters who want a quick tool free capacity upgrade this Tyrant CNC extension is a proven option. Tyrant CNC Magazine Extension Specifications Manufacturer: Tyrant CNC Model: Magazine Extension for Sig P320 Compatible Hosts: Sig Sauer P320 15/17-Round Magazines Capacity Increase: +5 Rounds Color: Black Material: Aluminum Length: 1.15 Weight: 1.3 oz Includes: Power Spring Available At: GrabAGun