Semi-auto G36 rifle, Tommy Built conversion with genuine HK parts, left-side profile with folding stock extended

Unfired Semi-Auto G36 Rifle – Tommy Built Conversion with Genuine HK MG36 / KSK Parts

Semi-auto G36 rifle, Tommy Built conversion with genuine HK parts, left-side profile with folding stock extended
Semi-auto G36 rifle, Tommy Built G36 with HK MG36 components, right-side view showing slim handguard and top rail

🎯 This unfired semi-auto G36 rifle isn’t your average clone. It’s a Tommy Built Tactical conversion wearing a genuine Heckler & Koch MG36 receiver component marked to the German KSK — not the shop’s standard stamped upper. For the collector who’s been chasing a G36 that actually carries authentic HK German heritage, this is the one worth a trip to the counter.

A Genuine HK MG36 / KSK-Marked Component

The receiver component on this build is factory-marked “HK MG36 / Kal. 5,56mmx45 / KSK, NR 222.” That’s what sets it apart from a typical Tommy Built G36, which wears the shop’s own T36 stamp. Instead, this semi-auto G36 rifle carries genuine Heckler & Koch markings tied to Kommando Spezialkräfte — Germany’s Army special forces command. Anyone who follows the platform knows how rarely authentic HK MG36 components turn up on this side of the Atlantic, and a KSK-attributed piece is rarer still.

Semi-auto G36 rifle receiver marked HK MG36, Kal. 5,56mmx45, KSK NR 222, shown beside the semi-auto-only selector

Why the MG36 Marking Matters

The MG36 was Heckler & Koch’s light-support variant of the G36 family — a heavier-barreled squad automatic developed in the mid-1990s and designed to feed from a 100-round drum. It was introduced around 1995 and never went into full production; the Bundeswehr opted instead for a standard G36 fitted with a heavy barrel, bipod, and drum magazine. Because the MG36 barely existed in the field, any genuine MG36-marked component is scarce, and a KSK-marked example is a genuine collector find. On a semi-auto build, it becomes a piece of HK history you can own and actually shoot.

How This Semi-Auto G36 Rifle Is Built

Tommy Built Tactical is the recognized standard for G36 conversions in the United States. This rifle pairs a genuine German HK G36 parts kit — barrel, slim handguard, side-folding stock, and bolt carrier — with a semi-auto-only fire control group, all assembled to be 922R compliant. The payoff is a rifle that runs and handles like the original while remaining a Title I semi-automatic. Chambered in 5.56×45mm NATO, it uses the G36’s proven short-stroke gas piston system and rotating closed bolt — a design known for running clean and cool because it keeps carbon fouling out of the action.

Spec Highlights

  • Caliber: 5.56×45mm NATO
  • Action: Short-stroke gas piston, rotating closed bolt, semi-automatic only
  • Barrel: Approx. 18.9″ (480mm) rifle-length HK German barrel
  • Receiver marking: Genuine HK MG36 / Kal. 5,56mmx45 / KSK, NR 222
  • Stock: HK side-folding skeleton stock (E/K pattern)
  • Furniture: Slim G36 handguard with Picatinny top rail and rail-mounted iron sights
  • Feed: Genuine HK G36 magazine
  • Condition: Unfired
  • Build: 922R-compliant semi-auto conversion by Tommy Built Tactical

Condition, Configuration & Price

This example is unfired and set up as a standard rifle-length semi-auto — not the heavy-barrel LMG layout of the original MG36, but wearing that genuine MG36-marked component alongside the sought-after HK folding stock and rail configuration. The piston system is optimized for 5.56 NATO; lighter .223 or steel-cased loads may not cycle as reliably, which is normal for the platform. Priced at $6,000, it’s aimed at the HK collector who wants authentic German heritage rather than a plain clone.

Now Available at Gunshine Arms

Gunshine Arms

2244 N Dixie Hwy, Boca Raton, FL 33431

Phone: (561) 756-8415

Email: [email protected]

Web: gunshinearms.com

In-store pickup available.