SHS CNC Steel Ball Bearing Spring Guide for Airsoft AEG Gearbox (Type: Version 3)

"worked in my A&K SR25 with no compatibility issies

"This is a good spring guide, recommended replacement of your stock factory spring guide if you are giving your AEG a reinforcement or make over.

"This is an excellent spring guide that is made COMPLETELY made of metal unlike other springs guides whose shafts are made of some reinforced plastic. This piece fits nicely into my ICS M4 upper gearbox, and of course, you can still use the outer ICS screw that fixes the spring guide to the gearbox.

I also installed another JBU spring guide into my JG M4 without any problems.

5/5 stars for this no-brainer product!

"Fit perfectly in my upper gearbox for my ICS M16A3. Stock screw matched threads for the spring guide also. I did add a little lube to the bearings before installing to be safe but they seemed to be lightly lubricated when I got it. Otherwise very sturdy construction and good quality.

"I used this after melting my stock spring guide. I have an ICS M4 with a split gearbox. Using this spring guide was the best choice I couldve made. It has ball bearings and a smooth surface. Its REALLY strong, I put it through hell and it never failed me. Definately worth using. I highly suggest it and I also suggest to all people whose guns I build. A+++

"The spring guide looks and feels like a quality product but it does not fit my CYMA V2 reinforced gearbox.