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Stoeger

XM1 S4 Suppressor .177

Caliber.177PowerplantPCPTypeRifleProductionCurrent · 2018–present

Specifications

Caliber
.177
Powerplant
PCP
Action
Bolt action
Type
Rifle
Ammunition
Pellet
Magazine
9 rounds
Air tank
100 cc
Fill pressure
200 bar · 2900 psi
Regulated
Integrated regulator
Max velocity
920 fps
Max energy
19.9 fpe
Barrel
22.24 in
Overall length
45 in
Weight
5.73 lbs
Optics rail
11mm dovetail + side Picatinny rails
Threaded muzzle
No on most springers; Yes (1/2" UNF) on Bullshark PCP
Moderator
Integrated S4 suppressor system
Production years
2018–present
Production status
Current
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