{"product_id":"pistol-mk4-k-5-56mm","title":"Pistol, Mk4 K, 5.56mm","description":"The Mk4 K is CMMGs primary short barreled rifle. The Mk4 K includes the RKM11 KeyMod free floating hand guard. The barrel is a nitrided 4140 CrMo steel 12.5 barrel available in both 5.56x45mm and 300 AAC Blackout. Each rifle includes Magpul MOE pistol grip and trigger guard, along with a magazine and CMMGs lifetime quality guarantee.\u003cbr\u003e\u003cbr\u003eSpecifications:\u003cbr\u003e\u003cbr\u003e- Caliber: 5.56mm\/300 BLK\u003cbr\u003e- Barrel: 12.5 medium weight multi-role profile\u003cbr\u003e- Muzzle: A2 comp., threaded 1\/2-28\u003cbr\u003e- Hand Guard: CMMG RKM11 KeyMod hand guard\u003cbr\u003e- Furniture: Magpul MOE pistol grip\u003cbr\u003e- Receivers: Forged 7075-T6 AL M4 type upper, AR15 type lower\u003cbr\u003e- Trigger: Single stage mil-spec style trigger\u003cbr\u003e- Weight: 6 lbs (unloaded)\u003cbr\u003e- Length: 29 (stock collapsed)\u003cbr\u003e- Gas Port Location: Carbine","brand":"CMMG, Inc","offers":[{"title":"Default Title","offer_id":22102369271887,"sku":"256513","price":999.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0092\/7861\/9727\/products\/GS256513.jpg?v=1555645816","url":"https:\/\/green-supply3.myshopify.com\/products\/pistol-mk4-k-5-56mm","provider":"Green Supply3","version":"1.0","type":"link"}