The AP53 Pistol is chambered in 5.56x45mm 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 53 is based on the iconic HK53 and is chambered in 5.56x45mm with a 30 round HK 33 pattern polymer magazine an overall length of 22.3 inches a width of 2.2 inches a height of 10 inches a cold hammer forged barrel length of 8.3 inches and an unloaded weight of 7.2lbs (3.3kg). The AP 53 is equipped with a Navy style assembly with an ambidextrous selector MP5 compatible wide handguard standard HK33 trigger set-up and 4 prong flash hider. – WEIGHT 7.2 lbs – CAPACITY 30+1 rounds – FRONT SIGHT Fixed – CARTRIDGE 556x45mm NATO NATO – MAGAZINE TYPE HK33 Patterned Magazine – REAR SIGHT Fully Adjustable – MUZZLE 4 prong Flash Hider – MAGAZINE INCLUDED Two-30 Round Magazine – FINISH COLOR Black – OVERALL LENGTH 22.3 – ACTION TYPE Semi-Automatic – STOCK MATERIAL Synthetic – BARREL LENGTH 8.3 – RECEIVER stamped – MANUFACTURED Made in Turkey