The BEST of the BEST when it comes to Nylon M4 Split Receivers.
Upgrade to the BD556 Nylon to enjoy all the superior benefits that come with it.
Includes Shell + Bolt + Screws / Springs & Assembly Accessories

X Power Charge Handle / X Power Mag Release / Ejection Bolt are all metal / Dust Cover

Available in BLACK and TAN Colour
Please Note: This is a shell kit and does not include gearbox and grips.

Some minor details may be different from picture.