Impact M4 Big Bore .357

Specifications

Caliber

.357

Powerplant

PCP

Action

Forward sidelever

Type

Bullpup rifle

Ammunition

Pellet/Slug

Magazine

9 rounds

Air tank

580 cc

Fill pressure

250 bar · 3625 psi

Regulated

AMP MKII

Shots / fill

30

Barrel

27.6 in

Overall length

33 in

Weight

7.5 lbs

Optics rail

20 MOA Picatinny/Weaver

Threaded muzzle

1/2x20 shroud end

Moderator

Shrouded barrel; moderator threaded

Production years

2024–present

Production status

Current