Laylax Nine Ball Enhanced Rubber Magazine Gasket for Airsoft GBB Pistols (Model: Tokyo Marui Hi-Capa Series)

"tried and true upgrade part. one of the essentials.

"Improved my gas efficiency and shot-to-shot consistency so worth it for 15 bucks.

"Worked Great For My BLU, Also Works For AAP

"Got these for my SAI 2011 5.1 AW mags and love them. Size difference it very noticeable compared to stock and makes a great seal. One of my mags had a sealing issue requiring me to push up on the mag from the bottom to seal the mag to the nozzle. Quick swap to these and no more issues. Easy and simple upgrade I now use on all my mags. 5/5

"I tried these out for my mk23 and they dont work , obviously they dont say they do but I tried everything I thought would maybe work ,I'm sure they are great in the gun they are intended for

"You can see the difference of the size of the rubber. The seal is much better than the original one on a WE Tech Hi-Capa magazine.

"Almost a requirement.

GET THIS, and put it in your AW custom or WE Tech double stacked 1911 mags.
The difference it makes:
These lips protrude further up and out of the top of your mag, and will get a great seal on your loading nozzle/BBU, increases compression greatly. Less gas loss due to a greater seal.

Put a tad bit of silicone oil on the lip.

*ALSO*

You may notice that the first round to load into the chamber makes your nozzle stick and you may have to manually push the nozzle back to activate the spring. The protruding lips on the mag is pushing into the nozzle. Either deal with that or upgrade the nozzle spring to a very strong level, like 150. After the initial round is engaged the Blowback action will make sure to feed your mag the rest of the time.

"Really great product. Easy to install into the magazine. It boosted my FPS from 285 to 348 for my TM hi capa 5.1 on 0.20g bbs.

"Very good product! Perfect to my AW hi-cap and extended mags. It looks better quality than the original in addition to seal better . lts a Laylax product...

"So As a replacement for your standard gas route it not only increases performance but it also increases efficiency. I put one of these in my KJW Co2 Hicappa 32 round Magazine and it allowed me to get out up to 90 shots which is just under 3 magazines worth of ammo.

"Nice performance parts. Denser rubber requires more attention to lubrication - but very rewarding.

"I find these pricey, but they're worth the money.

If you want to increase the performance on your hi capa or 226, buy them

"muito bom produto, aumentou bem meu fps

"Got a 10 FPS boost on a Marui 5.1 (chrono verified) with a little boost in efficiency. Can't beat it for $15.

"These are definitely a great buy. Basically, by creating a better seal with the loading nozzle, no gas leaks and is able to actually be used (rather than wasted), raising your FPS about ~5-15, increasing your recoil a bit, and speeding up the slide's cycle rate.

I would seriously recommend these as an upgrade.