M4 SIR-S

Item No:

AEG-29

Name:

M4 SIR-S

Material:

Nylon Fiber + Aluminum Alloy + Steel

Fire Mode:

Full Auto / Semi Auto / Safe

Magazine:

140 Rounds

Length:

693 ~ 783mm In 5 Steps

Hop up:

Adjustable

System:

- Star Original Easy Power Step Up Metal Gear Box.
- Bolt Locking & Functional Bolt Catch.

Motor:

High Torque Flat Motor

Description:

- Metal Box.
- Realistic Marking Magazine.
- Aluminum Receiver With CNC Marking.
- Can Fit Real Steel Or Copy Buffer Tube & Butt Stock.
- Decent Lower Receiver.
- Aluminum Outer Barrel & Handguard.
- Sequential Number In Different Body.
- Steel Trigger & Trigger Guard.