PPS M870 Pump Action Gas Shotgun: specs, joules & FPS

Complete specs PPS Gas NBB (non-blowback)

PPS M870 Pump Action Gas Shotgun, NBB: 1.14 J, 350 FPS, 2,310 g, 4 rounds. Full specs from the official source, with FPS for every BB weight.

Power

Energy · computed1.14 J
Velocity350 FPS107 m/s

Above Italy's 1 J limit

Italian shops sell versions tuned below 1 J: ask the shop which version they ship.

Energy computed from the velocity with 0.20 g BBs, the standard weight manufacturers and shops use to measure FPS.

For information only, based on the source's data for this version. Not legal advice: always check current local law and the version the shop sells.

Technical specifications

BrandPPS
ModelM870 Pump Action Gas Shotgun
CategoryShotguns
Power sourceGas NBB (non-blowback)
PlatformM870
Weight2,310 g
Length866 mm
Magazine4 rounds

Weighs 2,310 g: lighter than 67% of NBB replicas in the same category in the database (12 with weight).

Similar alternatives

Replicas of the same type and category that stay within the Italian 1 J limit.

ReplicaEnergyFPSWeight
Tokyo Marui M870 Breacher0.58 J2502,200 g
Tokyo Marui KSG0.95 J3202,900 g
Tokyo Marui M870 Wood Stock Type0.58 J2502,660 g
Tokyo Marui M870 Tactical0.58 J2502,680 g
Maruzen M870 Black Version0.45 J2202,550 g

Velocity with different BB weights

At the same energy, heavier BBs leave the barrel slower. Expected velocity with the most common weights:

BB weightFPSm/s
0.20 g350107
0.25 g31395
0.28 g29690
0.30 g28687
0.32 g27784
0.36 g26180
0.40 g24775

Theoretical calculation at constant energy (1.14 J). Real-world values can differ slightly with hop-up and replica.

Try other values in the joule ↔ FPS converter →

Data source

The values on this page come from the product page of the shop redwolfairsoft.com, checked on 2026-11-07. The manufacturer does not publish full specs: values may refer to the version that shop sells.

Shop product page ↗ redwolfairsoft.com

Spotted a wrong or missing value? Let us know.