Regarding that dry fire device......I just use a snap cap for dry fire. This better than or just as ? Cleaning rod guides YES ! And as too the PSG1 style grip I agree cheap knockoffs are IMHO too fragile for heavy use on a working gun or one that is used in competition .
Great READ as usual Sir !
Zen and the fine art of bullet launching !......Good stuff !
Stay safe !
A snap cap is okay, but this dry fire device seems better, IMHO. No moving parts hit any other parts. The firing pin never moves, and the hammer is gently stopped short of hitting anything metallic. When you recock the weapon, there's no snap cap to be ejected and rechambered.