The AP51 PDW Pistol is chambered in 7.62x51mm and utilizes a Semi-Automatic Roller-Lock Delayed Blowback Action. Tested to NATO environmental standards for Salt Fog Humidity Hot/Cold Sand and Dust and produced by Military Manufacturer MKE. – The Century Arms AP 51 is based on the iconic HK51 PDW and is chambered in 7.62x51mm with a 20 round G3 Patterned Polymer magazine an overall length of 23.3 inches a width of 2.2 inches a height of 8.5 inches a cold hammer forged barrel length of 8.3 inches and an unloaded weight of 7.9lbs (3.6kg). The AP 51 is equipped with a Navy style assembly with an ambidextrous selector MP5 compatible wide handguard standard G3 trigger set-up and bird cage style flash hider. Comes with Magpul BTR brace. – WEIGHT 7.9 lbs – CAPACITY 20 rounds – FRONT SIGHT Fixed – CARTRIDGE 7.62x51mm NATO – MAGAZINE TYPE G3 Patterned Magazine – REAR SIGHT Fully Adjustable – MUZZLE Birdcage Style Flash Hider – MAGAZINE INCLUDED 2 x 20-Round Magazine – FINISH COLOR Black – OVERALL LENGTH 23.3 – ACTION TYPE Semi-Automatic – STOCK MATERIALSynthetic – BARREL LENGTH 8.3 – RECEIVER stamped – MANUFACTURED Made in Turkey