Cross Armory AR Fixed Mag Permanent Magazine Lock Black Small. Designed in California for weapons in heavily regulated states that require fixed magazines such as New York New Jersey and Connecticut AR FIXED MAG will not release the magazine once installed. For owners of AR-15s and AR-10s who have decided to top-load their magazines the AR FIXED MAG when paired with Cross Armory QUICK PINS provides the most convenient reloading system on the market. Cross Armorys AR FIXED MAG is consistent with the fixed magazine laws that state that the magazine may not be removed from your weapon in order to reload. It cannot be removed from the weapon without the use of a drill or other power tools. Cross Armorys AR FIXED MAG is a reliable durable and easy-to-install fixed magazine solution. When paired with the Cross Armorys QUICK PINS reloading can be performed efficiently and with a minimum of inconvenience to the user. Specifications for Cross Armory AR Fixed Mags: Manufacturer: Cross Armory Gun Make: AR Platform Gun Model: AR-10 AR-15 Model Generation: 5 4 3 2 1 Finish: Anodized Fabric/Material: Steel Gun Type: Rifle Weight: 1 oz Features of Cross Armory AR Fixed Mags Permanent Magazine Locking System for AR-15 and AR-10 rifles QUICK and SAFE fixed magazine device; prevents the removal of the magazine from your AR-15 or AR-10 rifle (without destruction of the permanent locking features) when properly installed QUICK EASY installation Eliminates any form of BUTTON When combined with Cross Armory QUICK PINS users have the most efficient top-loading magazine system available De-installation requires power tools AR FIXED MAG has been designed for markets (NY NJ and CT) that require permanently fixed magazines for all AR-style rifles. With AR FIXED MAG properly installed the magazine is not removable from the magazine well unless the device is de-installed using power tools. Installation of AR FIXED MAG is quick and easy requiring no adjustment. Package Contents: Cross Armory AR Fixed Mags What firearm models does the manufacturer say Cross Armory AR Fixed Mags is compatible with? The manufacturer says that Cross Armory AR Fixed Mags is compatible with AR-15 AR-10Cross Armory CRFM: AR Fixed Mag Permanent Magazine Lock Black Small