10 times better than my PDI. Very tight spread on my rifle now. Compliments the F2 perfectly.
Length was perfect for my VFC 416.
I will be putting these in my other 3 rifles.
Retro ARMS 17.5T Piston for Elongated Gearboxes/SR25
I've been buying these grips since they came out under the Magpul PTS license a million years ago. I've purchased other grips in between, but have always gone back to this one. It's really the best grip on the market.
Good stuff. Brill takes care of my parts needs
Inexpensive, works as intended, and has good up-down fitment on the gearboxes I've used them in.
Have only used the weaker version of the spring, but it works well. Switching from a high-cap to a mid-cap caused a 10-15 fps drop in power on burst, and the stronger spring eliminated this issue.
Ran out of shrink tubing and shipping from Brill is way faster than other sites. Good quality tubing, and if you don't remove insane amounts of wire coating you can cut each piece in half and use it twice.
Delayer chip. Ordered several, and they had a tiny bit of material where they're cut off from the mold. 5 seconds and a box cutter fixes this though, and for how inexpensive these are I can't complain.
Decent replacement springs if you're not doing anything crazy with your build. Oddly enough, there's an extra mystery spring (very long and stiff), and I got 2 different sizes of safety spring.
Markedly high quality trigger contacts with extremely smooth contact/spring operation.
Absolutely standard piston head with bearings. Provides good air seal on the cylinders I've tried. Does exactly what it says on the tin.
Great etu, and easily the most reliable on the market,. Absolutely hilarious that you can buy nearly two of these for the price of one titan.
Extremely good bushings and sit extremely low to the gearbox, making them very nice to use in tight gearboxes
I'm a fan of retro arms parts, and have used a few items from retro arms in the past. The implication of the listing is that this is built by retro arms, and whoever was putting these together had added too many shims on my unit. That's potentially not worth the point off I gave it. I drop down to 4 stars because it also has had the jefftron "real feel trigger" spring removed. A closer look at the images does make this clear, but no where is it listed that its removed, and it removes the choice from the owner whether or not to use this system. Mine also had issues with the sticker placement for the jefftron. Until I removed and properly placed one of the, thankfully still included, stickers from jefftron on the tappet plate, my gun had no ability to differentiate between the safe and semi position.
So yes, even if you buy this, plan to open the gearbox, you should anyways to get proper motor height and adjustment with the bevel gear. That's not worth a point off, but the incomplete description, incorrect shimming, and incorrect sticker placement for the jefftron all add up to less then a perfect score.
I've tried these in multiple cyma m14s and this hasn't worked in any of them (as it turns out the cyma m14 isn't entirely TM spec). So not an issue with the nozzle itself. For replicas that are actually TM spec (such as the FAMAS), this nozzle works perfectly.
Good quality replacement part. Only caveat is that you'll probably going to want a longer screw if you're going to put a spacer between the piston and piston head.
For what it is the price is a bit high, but it's a fun addition if you're using a perun hybrid
Quality seems to be good so far and air seal on the cylinders I've tried is good. Didn't even notice it was double o-ring when I ordered it, but so far haven't noticed any issues due to increased friction.
Dropped in with no modifications into an echo 1 vss vintorez. Worked perfectly straght away.
Not much to complain about as it does what it does adds a click. Would recommend and purchase again for another replica.
Install was a bit different than what I'm used to with gate optical mosfets but it wasn't too hard to figure out. Very detailed instructions and everything you need is included for install. I installed this into a echo 1 Vss vintorez and everything went smoothly. Programming was also a bit different as it's all done by the selector switch and trigger but that as well wasn't a big deal. Just tale your time and you're good to go! Added a clicker with it as well. Paired up perfectly. You will however not need the trigger cam that has the magnet (included with the perun v3 hybrid) when you use a clicker.
All and all id purchase again for a different replica. Pleased with my purchase.
I've used plenty of ZCI motors over the years so I have come to trust these motors and thoer price and performance is just right for me. I purchased this motor as a replacement for my stock cyma M14 motor. It dropped right in with no modifications needed to the motor cage and is pairing nicely with my perun AB ++mosfet. Literally took minutes to install and put back together. Perfect motor for the price!!!
My new favorite for compression parts in my builds
Solid aluminum construction, and a perfect air seal. FPS doesn’t disappoint
