AA-12 vs Stevens Model 311

1996–Present

1940–1989

~10,000 estimated

Over 1,500,000

965 mm (38 in) with stock extended; 820 mm (32.3 in) collapsed

1,194 mm (47.0 in)

457 mm (18 in) standard; 381 mm (15 in) compact variant

711 mm (28.0 in)

5.5 kg (12.1 lb) empty

3,180 g (112.0 oz) unloaded

20‑round drum standard, 8‑round box, optional 30‑round drum

2 rounds

Gas‑operated, closed‑bolt, rotating bolt with recoil‑mitigation buffer

Break-action

Select‑fire trigger with Safe, Semi‑auto, and Full‑auto modes

Double triggers

Fixed iron sights (rear notch, front bead) with Picatinny rail for optics

Single brass bead front