This is a low head screw used to secure the spring guide of the company's QSC mechanism.
AK series and other rifles cannot fix the spring guide with the buffer tube fixing screw like the M4 series.
Depending on the setting, the spring guide may move loosely, which may lead to damage.
Use this nut to secure it in place.
*Depending on the model, it may be necessary to cut down the receiver side to accommodate the thickness of the screw head.
In addition, there are AR-type rifles in which the buffer tube is screwed in like a real gun.
With some ingenuity, it can be used for a variety of things.
There are two holes in the head, which can be turned using the company's QSC Tool .
Appropriate tools such as a crab wrench can also be used.
The screw part is M5x10mm, the head diameter is Φ17mm, and the thickness is 1.2mm.
![[RETRO ARMS] CNC Screw QSC](http://rock-et.jp/cdn/shop/files/RETRO-6621_1024x1024.jpg?v=1750386156)
