DAG Training Ammo

By compensator I meant robertrtg.com/store/pc/G3-HK33-BLANK-FIRING-ADAPTER-38p2048.htm
I haven't heard about special bolt for them. Bolt might leave a cleaner gun

Yea I was gonna say all you need is the training bolt for the DAG ammo.

hkparts.net/shop/pc/viewPrd.asp?idproduct=18265