Heckler & Koch USP .177 Air Pistol Blowback Magazine

It is a heavy magazine which allows the pistol overall to have weight approximating the firearm upon which it is based. The weight of the magazine insures that it will drop free when released.

I have 8 magazines and 4 of them double feed BBs. I bought these magazines so that I could spend more time practicing drills instead of constantly reloading the one magazine that came with the pistol. But 4 of my brand new mags are defective. I haven't had leaking problems with these mags so far.

Make the feed lips out of steel so that they won't double feed the BBs.

Resembles real magazine. Solid Construction made of metal not plastic.

Quality Control on seals

Worked fine for about a month then got tired of wasting $ on CO2 cartridges that would leak due to the poor design(?) on magazine. Hesitant to buy a replacement at almost 50$ per magazine.

Very good and solid construction, realistic weight

Purchased three extra mags last year was kind of disappointed, but down the line two of the mags somehow got a leak and only used them for about a month then bam, the mag failed to hold the co2 love the gun but very hesitant on getting more mags, if the seal quality was improved would love to purchase more as a seasoned air gunner/ armed security, practicing was a pain with mag and firing drills.

Mags are great very useful when you want to chuck it at a target cuz it didn't work as intended.

Solid construction, resembles a real mag

Quality control! This mag leaked with the first C02 cartridge rendering it useless. Will send back!