Things I liked: Clean smooth double action trigger pull. Really excellent magazine, doesn't let the bb's fall out, easily removed, kind of nice the slide stays back when mag empties. Accuracy is just ok but then it's not a rifled barrel for pellets and it's a short barrel.
Things I would have changed: blowback action is a waste of CO2 power. Modify the air gun such that the blowback action cocks the weapon and enables single action or simply eliminate it. Additionally, insertion of the magazine should release the slide rather than having to manually release the slide. The 'safety' insert or small trigger in the main trigger is useless/cosmetic, the air gun can be fired without depressing the little trigger...just eliminate it. Safety on the RHS is ok, I like the safety on the HPP which is on the left. Umarex needs to field a fully semi auto blowback with both single and double action.
What others should know: This is a double-action only air gun...the website says this but the pyramyd air staff that answered my telephone request was unsure of whether the blowback action cocked the air gun...it most certainly does not.
Things I liked: Solid metal construction. If there's plastic here I think it may only be on the handle…and the grip is very nice for a broom handle!
Things I would have changed: Larger,higher capacity magazine. 20 BBs goes in a heartbeat on full auto. A larger magazine would also hold TWO 12gm cartridges…this thing SUCKS CO2! Basically only two mag loads on full auto. Change the plastic cap for the CO2 cartridge to a metal piece with a folding tab on it…no reason to have to use/carry a 10mm allen wrench. Umarex could make a kit to change it out to a PCP with a larger magazine.
What others should know: Quite accurate out to 20 yards…BBs go where you point/aim. And did I say it eats CO2 cartridges like candy? Sounds like a 1000+ rpm cyclic rate of fire. There doesn't seem to be an easy way to load this magazine other than one by one..you have to drop a BB in the side of the top of the mag and then push it in a couple mm and let it drop. 20BBs is tedious.