Heckler & Koch MR556A1 Tropentram 75th Anniversary 5.56mm
$3,579.00
Description
The Heckler & Koch MR556A1 75th Anniversary Tropentarn is a limited-edition semi-automatic rifle (civilian-legal variant of the HK416 family) finished in a distinctive Tropentarn camouflage pattern inspired by Bundeswehr service heritage. It combines HK’s short-stroke gas-piston operating system (which keeps hot gases and carbon fouling out of the receiver) with a cold-hammer-forged barrel, a free-float M-LOK handguard, and ambidextrous controls on a modern tactical platform. This anniversary edition is produced in limited numbers with special Cerakote styling and anniversary markings, making it both a capable 5.56 mm rifle for serious shooters and a collector’s piece celebrating Heckler & Koch’s legacy.
| Feature | Specification |
|---|---|
| Manufacturer | Heckler & Koch |
| Model | MR556A1 75th Anniversary (Tropentarn) |
| Type | Semi-automatic rifle (civilian modern sporting rifle) |
| Caliber | 5.56×45 mm NATO (also compatible with .223 Rem) |
| Action | Short-stroke gas piston with rotating bolt |
| Barrel Length | 16.5 inches (cold-hammer-forged steel) |
| Twist Rate | 1:7″ RH, 6 lands/grooves |
| Operating System | Short-stroke piston (HK proprietary) |
| Muzzle Device | Standard 5.56 flash suppressor (threaded 1/2×28 TPI) (typical MR556A1) (HK USA) |
| Receiver Material | Aluminum with full-length Picatinny top rail |
| Handguard | Free-float M-LOK compatible (Tropentarn) |
| Stock | Adjustable telescoping black synthetic stock |
| Grip | Black polymer pistol grip |
| Magazine Compatibility | STANAG / AR-15 pattern magazines (30 + 1 typical) |
| Capacity | 30 + 1 rounds (typical) |
| Sights | None included; optics-ready Picatinny rail |
| Overall Length | ~33.9″ – 37.68″ (stock adjusted) |
| Weight | ~8.6 lbs (unloaded) |
| Finish | Tropentarn camouflage Cerakote (limited-edition) |
| Trigger Pull | ~7.64 lb (HK spec for MR556A1) |
| Rail / Mounting | Picatinny rail on upper; M-LOK handguard attachments |
| Limited Edition | Part of HK’s 75th Anniversary commemorative run (limited production) |
| Intended Use | Tactical / range / defensive and collector use |
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