The HK21 is a German 7.62 mm general-purpose machine gun, developed in 1961 by small arms manufacturer Heckler & Koch and based on the G3 battle rifle. The weapon is in use with the armed forces of several Asian, African and Latin American countries.

MGW offers replacement sights, catches, springs, pins and other small parts for these select-fire guns made in the 60's to present day. Outfit your Heckler & Koch HK11E/HK21/HK21E/HK23E with quality OEM and aftermarket parts and components to …

The Heckler & Koch HK21 is a select-fire, roller-delayed blowback operated select-fire rifle that can be fired in semi- and full-auto and even in 3-round bursts if your battalion commander orders that.

TSC has researched extensively to bring you the finest HK21E conversion available in the world today. TSC Machine services, repairs, and upgrades H&K machine guns.

HK21 是一款由 西德 軍火生產商 黑克勒&科赫 在1961年以 HK G3戰鬥步槍 為基礎研制和生產的 通用機槍，發射 7.62×51毫米 北約 口徑 步枪 子彈。 這款武器目前仍在亞洲、非洲和拉丁美洲多個國家的軍隊之中使用著，也在西德（現 德國）境外被 特許生產，在 葡萄牙 由 純銀手臂工廠 （葡萄牙語： Fábrica do Braço de Prata）生產並且命名為 M/968，在 墨西哥 則由國營兵工廠 國 …

Check out the HK21 UBF (UNIVERSAL BELT FED) This is the Truly Universal Belt Fed you need in your collection. This RDTS Designed HK21 can go from a 9" Belt Fed Pistol to 17" Full Length Rifle in less than 5 minutes!!

Post front and "2-12" adjustable peep rear sights, with a folding bipod and vertical foregrip installed on the forearm, the "HK21" marking on the left side above the belt mechanism, and the original model designation on the right.

Michael’s Machines (MM) Specializes in Firearms Based On the HK* Recoil Operated and Delayed Roller Lock Bolt System. MM is a Class 2 Manufacture and NFA Dealer. MM's focus is on custom belt-fed rifles in 5.56 and 7.62 NATO calibers. Michael’s Machines manufactures a full line of HK* style rifles, parts and accessories.

2025年1月24日 · A product derived from Heckler & Koch's G3 battle rifle, HK designed the 7.62 calibre machinegun HK21 in 1961. This machinegun fires from a closed bolt, operates on the roller-delayed blowback action mechanism of G3.

거기에 기존의 G3용 개머리판 에서 새로운 개머리판으로 바꾸고 트리거도 3점사 트리거로 바꾸는 등 개량이 가해진 HK21A1과 수출용 HK21E가 나왔다. 그리고 바레이션으로 5.56×45mm NATO 탄 버전인 H&K HK23 과 사용탄은 같으나, RPK 처럼 탄창을 장전할 수 있게 개조된 HK11 등도 나왔다. 포르투갈군 에서는 포르투갈 식민지 전쟁 에서 m/968이라는 제식명으로 1968년부터 사용했다.