Umarex CO2 Glock
I've been using this as a sidearm for a few years of playing. I mostly play outdoors, with the Glock useful for checking out buildings mostly if I have a longer primary setup.
It shoots quite accurately and the trigger pull is very crisp (better than a real stock Glock). There is a safety crossbutton on the trigger which I found annoying and ended up supergluing in the fire position.
This was a pretty cheap purchase. Currently these sell for about $60 and when I bought it, it was a little cheaper. For that price there are some downsides.

Since the magazine shares the grip with the CO2 bottle, it is a funky L-shape. This has prevented me from carrying spare magazines on the field as there isn't a seamless place for them on my gear. This leaves me with just one magazine of 11 rounds, so it really is a niche gun rather than something to play a whole game with. For me this isn't a problem, but for "serious" handgun players this magazine setup might not be great.
The Umarex Glock is *slightly* wider than a real Glock. I was very disappointed to discover this, as it does not fit into hard polymer holsters that are sized to tightly, securely hold Glocks. I've been using a Tactical Tailor MOLLE holster with a thumbsnap.

I know a lot of players who keep up in the newest hypebeast gear will poo-poo MOLLE holsters, but Tactical Tailor has always been a quality brand and even this simple holster is stiff and rugged, which is all it really needs to be.

I've fitted it on a USGI leg extender panel. Dropleg setups are compromises, though they are often entirely maligned by association with really bad dropleg setups. The leg extender allows the holster to drop low enough to get away from any torso gear and pulls the Umarex grip right when my hand is at rest. The weight is pretty minimal and sits on the hips, with the leg strap just a prevention to jostling.
Another downside of the Umarex is the lack of a built in place for a pistol lanyard. Normally when gearing up for the day, after I've put the CO2 bottle into the grip, I'll attach some 550 cord to the grip and secure it with electrical tape. Excess cord stuffed into the belt. It's a little bit of a sloppy solution, but if (when) I fall down an entire muddy slope I get to keep my pistol, so I'll take it.
For the price I have gotten value out of this. It has fired every time I've needed it to. The magazines are a limiting factor for anyone wanting to run a pistol more offensively.
It shoots quite accurately and the trigger pull is very crisp (better than a real stock Glock). There is a safety crossbutton on the trigger which I found annoying and ended up supergluing in the fire position.
This was a pretty cheap purchase. Currently these sell for about $60 and when I bought it, it was a little cheaper. For that price there are some downsides.

Since the magazine shares the grip with the CO2 bottle, it is a funky L-shape. This has prevented me from carrying spare magazines on the field as there isn't a seamless place for them on my gear. This leaves me with just one magazine of 11 rounds, so it really is a niche gun rather than something to play a whole game with. For me this isn't a problem, but for "serious" handgun players this magazine setup might not be great.
The Umarex Glock is *slightly* wider than a real Glock. I was very disappointed to discover this, as it does not fit into hard polymer holsters that are sized to tightly, securely hold Glocks. I've been using a Tactical Tailor MOLLE holster with a thumbsnap.

I know a lot of players who keep up in the newest hypebeast gear will poo-poo MOLLE holsters, but Tactical Tailor has always been a quality brand and even this simple holster is stiff and rugged, which is all it really needs to be.

I've fitted it on a USGI leg extender panel. Dropleg setups are compromises, though they are often entirely maligned by association with really bad dropleg setups. The leg extender allows the holster to drop low enough to get away from any torso gear and pulls the Umarex grip right when my hand is at rest. The weight is pretty minimal and sits on the hips, with the leg strap just a prevention to jostling.
Another downside of the Umarex is the lack of a built in place for a pistol lanyard. Normally when gearing up for the day, after I've put the CO2 bottle into the grip, I'll attach some 550 cord to the grip and secure it with electrical tape. Excess cord stuffed into the belt. It's a little bit of a sloppy solution, but if (when) I fall down an entire muddy slope I get to keep my pistol, so I'll take it.
For the price I have gotten value out of this. It has fired every time I've needed it to. The magazines are a limiting factor for anyone wanting to run a pistol more offensively.