Heckler & Koch PSG1 vs M110A1 SDMR

1972–present

2018–present

Unknown

Over 6,000 (US Army contract)

1,208mm (47.6 in)

940 mm (37 in) with stock collapsed

650mm (25.6 in) — free-floating, polygonal rifling

420 mm (16.5 in)

7.2 kg (15.9 lb) with scope and empty magazine

4.5 kg (9.9 lb) unloaded with optic

5 or 20 rounds

20-round detachable box

Roller-delayed blowback, semi-automatic — precision-machined

Gas-operated, short-stroke piston, rotating bolt

Adjustable match, 1.5 kg (3.3 lb) factory, adjustable down to 0.5 kg

Two-stage match trigger

Hensoldt 6×42 scope with illuminated reticle standard — no iron sights

SIG Sauer TANGO6 1-6x24, backup iron sights