Elite Force H&K MP7 A1 Airsoft Gen4 Gun - Black Replacement Goggle Parts This TMC has been upgraded

This TMC has been upgraded with an Tippmann air-thru adjustable stock

but appears to be done poorly or it is simply coming off

This is also known by the old part number TA20009

with Battery

Elite Force H&K MP7 A1 Airsoft Gen4 Gun - Black Replacement Goggle Parts This TMC has been upgradedFeatures: Fully trademarked H&K Heckler & Koch Engraving Compact design; great as a sidearm or primary weapon Realistic, hard kick blowback Extreme high quality build and detailed finish Adjustable hopup for optimized range Fully automatic and semi automatic firing Telescopic two position retractable stock with rubber buttpad Metal rails, flashhider, magazine, fire selector, slide release, iron sight and retractable stock FPS Range: 380 430 For H&K