Command Palette
Search for a command to run...
Command Palette
Search for a command to run...
990 SPX Magpul - Class 3 vs Stevens Model 311
Side-by-side technical comparison
990 SPX Magpul - Class 3
ShotgunsIn production
Stevens Model 311
ShotgunsDiscontinued
Overview
Spec
990 SPX Magpul - Class 3
Stevens Model 311
Production
2015–Present
1940–1989
Units produced
~150,000 estimated
Over 1,500,000
Specifications
Spec
990 SPX Magpul - Class 3
Stevens Model 311
Overall length
965 mm (38 in) with stock extended, 889 mm (35 in) with stock collapsed
1,194 mm (47.0 in)
Barrel length
508 mm (20 in) standard, 457 mm (18 in) Compact variant
711 mm (28.0 in)
Weight
3.40 kg (7.5 lb) empty (standard), 3.10 kg (6.8 lb) Compact
3,180 g (112.0 oz) unloaded
Magazine capacity
5+1 rounds standard internal tube, 7+1 with extended tube, 8+1 with aftermarket magazine tube
2 rounds
Action type
Pump‑action, long‑stroke recoil operation with chrome‑lined barrel and stainless‑steel bolt
Break-action
Trigger type
Dual‑stage, single‑action trigger with adjustable pull weight
Double triggers
Sights
Fiber‑optic front bead, rear ghost‑ring sight; optional Picatinny‑mounted night sights
Single brass bead front