MAC-10 vs Sterling L2A3

1966–Present

1953–1988

~250,000 estimated (including U.S., Brazilian, and Asian licensed production)

Over 400,000

254 mm (10.0 in) with stock folded; 330 mm (13.0 in) with stock extended

481mm (18.9 in) stock folded, 690mm (27.2 in) extended

127 mm (5.0 in) for 9 mm version; 127 mm (5.0 in) for .45 ACP version

198mm (7.8 in)

2.5 kg (5.5 lb) empty, .45 ACP version; 2.3 kg (5.1 lb) empty, 9 mm version

2.72 kg (6 lb) empty, 3.45 kg (7.61 lb) loaded

30‑round box magazine standard; 20‑round (compact) and 40‑round (drum) options available

34 rounds — curved magazine for reliable feeding

Straight‑blowback, open bolt, telescoping bolt with simple recoil spring; selective‑fire (semi‑auto and full‑auto)

Blowback, open bolt — helical bolt grooves for debris clearance

Single‑stage mechanical trigger with manual safety lever; full‑auto fire only when selector set to "auto"

Selective fire (safe, semi, full auto)

Fixed, low‑profile iron sights: simple blade front post and notch rear; optional aftermarket tritium night sights

Protected front post, flip L-shaped rear aperture (100m/200m)