KRYTAC AEG M4 Trident Receiver Pin Set (Model: Rear Pin)

"Works as intended, no issues.

"Love these! I have them on both my Elite Force M4 and my Matrix M4. Great part if your receiver pins are a little loose or for loaner guns you don't want to fall apart.

"Good quality and fit in fine, i did notice that they are bit longer when installed on my receiver but it could be because i installed them in my KWA KM4. Worth the buy if you need to replace your old pin set.