| Heckler & Koch SL6 | |
| Origin: | Germany |
| Type: | Semi-automatic rifle |
| Is Ranged: | yes |
| Manufacturer: | Heckler & Koch |
| Production Date: | 1980s-1991 |
| Variants: | SL6A2, SL7 |
| Weight: | 7.92 pounds (3.6 kg) unloaded |
| Length: | 39.76 in. (1010mm) |
| Part Length: | 17.71 in. (450mm) |
| Cartridge: | .223 Remington, 5.56×45mm NATO |
| Action: | Roller-delayed blowback |
| Rate: | Semi-automatic or Select-fire (Semi, 2-round Burst) (SL6A2) |
| Feed: | 3, 4, or 10-round single column, detachable box magazine |
| Sights: | Rotary rear aperture drum, hooded foresight |
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]
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.
The Heckler & Koch SL6 is no longer manufactured, having been replaced by the Heckler & Koch SLB 2000.
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]