PX4 Subcompact has the smallest size in PX4 family which chambered in 9mm and .40 S&W, same as the full size PX4. It uses a tilt barrel system but not the ratating barrel design as seen in standard and compact model. It is designed for pensonal defense and law enforcement use with a focus on concealed carry.

Features:
Metal Slide with no marking and metal outer barrel in silver.
Safety lever on silde, which also functions as the decocking lever.
Polymer Subcompact size Lower Frame in Tan color and WE marking.
Short rail mount on the subcompact lower frame for rail attachment for compact pistol.
Reversible magazine release.
Semi-Automatic Pistol with blowback action.
Quick and simple field stripping like real steel.
Comes with 3 compact size grips in Tan (Small, Medium and large) and 3 in pink for user to change.
Luminous Front and rear sight.
Adjustable Hop-up system.
Included 25 rounds Standard Magazine with extended cover in Tan and 20 rds Subcompact magazine.
Compatible with Tokyo Marui / HK3 PX4 magazine. 

Specifications:
Length: 155 mm
Barrel Length: 55 mm
Shooting Mode: Safety, Semi-Auto
Weight (g): 754 (gun with magazine), 1250 (with box)
Color: Tan, Pink (Additional Grip)
Gas: 8KG (134a), 12KG (Green Gas)
Magazine Capacity: 25+1 rds (Std), 20+1 rds (Short magazine)
Material: Metal & Polymer
Bullet type: 6mm BB
Power (Muzzle Velocity):  300 FPS
Manufacturer: WE