VFC H&K MP7 A1 Dummy Suppressor / Barrel Extension Suitable for UMAREX / VFC MP7A1 AEG / GBB Series ( Umarex Licensed ) ( Black ) PTW Parts G&P CNC Aluminum Trigger /

G&P CNC Aluminum Trigger / Hammer Unit Housing

This will in turn change your short barreled 553 into a carbine length 551

-  16mm CW Adaptor included

WE Bolt Action SVD Sniper Rifle

9 G Series etc

VFC H&K MP7 A1 Dummy Suppressor / Barrel Extension Suitable for UMAREX / VFC MP7A1 AEG / GBB Series ( Umarex Licensed ) ( Black ) PTW Parts G&P CNC Aluminum Trigger /VFC H&K MP7A1 GBB 223mm Umarex Licensed Dummy Suppressor Barrel Extension Suitable for UMAREX VFC MP7A1 GBB series Manufactured under license of Umarex Aluminum Construction laser etched officially licensed markings QD (Quick Detach Attach) mechanism for maximum adaptability Diameter: 38mm Length : 223mm