Hadron Designs MK23/SSX23 NBB Modular TDC Cover (Dual Screw Version) - TM, STI, ASG, Novritsch
Allows adjustment of the Mk23 Hop up, externally, without loosing the slide movement feature using the Hadron Airsoft Designs Modular TDC Cover. Fits in 2 minutes. Highly Effective.
Modular design allows for fitting of a single screw or twin screw, in either a formard or rear position, allowing the adapt the TDC to the bucking they are using.
THIS IS THE DUAL SCREW PACKAGE, WHICH COMES WITH THE DUAL SCREW PLATE ONLY.