Heckler & Koch SL6

The Heckler & Koch SL6 is a roller-delayed blowback operated sporting carbine made by Heckler & Koch. It was chambered in 5.56×45mm NATO. The design was originally based on the Heckler & Koch 630 hunting rifle and is essentially a shorter-barreled version of that rifle. It was marketed throughout the world as a hunting/utility rifle.[1]

Heckler & Koch SL6
Heckler & Koch SL6 with 10-round magazine
TypeSemi-automatic rifle
Place of originGermany
Production history
ManufacturerHeckler & Koch
Produced1980s-1991
VariantsSL6A2, SL7
Specifications
Mass7.92 pounds (3.6 kg) unloaded
Length39.76 in. (1010mm)
Barrel length17.71 in. (450mm)
Cartridge.223 Remington, 5.56×45mm NATO
ActionRoller-delayed blowback
Rate of fireSemi-automatic or Select-fire (Semi, 2-round Burst) (SL6A2)
Feed system3, 4, or 10-round single column, detachable box magazine
SightsRotary rear aperture drum, hooded foresight

Unlike the roller-delayed blowback military Heckler & Koch rifles the cocking handle is situated far more rearward and on the right side and features a camming system to help overcome the initial friction exerted by the "bolt head locking lever" anti-bounce mechanism that prevents the bolt from bouncing off the barrel's breech surface.

Replacement

The Heckler & Koch SL6 is no longer manufactured, having been replaced by the Heckler & Koch SLB 2000.

Variants

The Heckler & Koch SL6A2 variant is essentially the same rifle; however, the SL6A2 includes a flash hider and offers a two-round burst selector.
The HK 630, a 5.56×45mm NATO/.223 Remington hunting rifle variant of the Heckler & Koch SL6, lacked the wooden handguard of the SL6 and was equipped with a longer barrel with integral flash hider/compensator slots at the end of the barrel, open rear leaf sights, and sporting-style buttstock.[2]
The Heckler & Koch SL7 is variant chambered in 7.62×51mm NATO.[3]

References
  1. Kokalis, Peter G. (June 1985). "SL6/7: Expanded Roles for HK's Compact Carbines". Soldier of Fortune magazine.
  2. The HK630 Cal. 5.56mm × 45
  3. "Archived copy". Archived from the original on 2008-11-12. Retrieved 2008-11-20.CS1 maint: archived copy as title (link)
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