I had a pretty cool day today, I went to a local flea market and found some Israeli practice grenades plus another vendor had Egyptian 7.62x39 blank rounds. Now.... here's the deal, I really want to shoot one of these suckers from my M70 AB2T. Do you think it is safe? It is a Century "slab side" 1mm receiver. The grenades fit the spigot perfectly and I've never had any real issues with the gun. Whats your opinion on this.