Pre-Order ETA January 2025 A&K Complete Metal Gearbox for SR25 Series Airsoft AEG Rifles

"If I ever have to fix up another Sr25, I'm buying one of these bad boys. I used Hopup to buy a Classic Army SR25 from someone who was dishonest and paid the price ($60). But for $60, i didn't expect that this gearbox would perform beyond my expectations. The gun was chronographed at 355fps on .25g's, however I was using .28g's, which is roughly 1.65J. I posted a video on it last year and you will clearly see that I am easily landing shots on a plate carrier over 65 yards away. Spend the money, you won't regret it! It's a strong gearbox.

"great gearbox, mine came complete. thought it wouldnt come with a small tamiya connector but it did and with a fuse on it too. shimming needs a lot of work but since its not installed yet, now is the perfect chance to do it. 4 outta 5 just coz the shimming is off. be aware guys, bad shimming causes broken gears. over all amazing gearbox, highly recommend. buy a shim set with this.

"This gearbox is great, it drops right into the A&K SR-25 carbine with no modification and no resistance. It does not come with any kind of battery connector (as pictured) but if you want to change to deans, that's not a bad thing. I just used the connector from the old gearbox by cutting the wire with some to spare, and soldering it to the wire off of the new gearbox. It was an easy fix. Definitely recommend this to anyone who needs a new gearbox for the A&K SR-25 carbine. Just takes a little soldering.

"Decent internals but no battery plug comes with it and the wires for a plug are motor connectors