Help IDing this?

[SAW]

Going through my parts box and found this. Anyone know what it is?
Tried the website but nothing. Thought is was something to do with gas rifles but not sure.

[Asomodai]

3 hours ago, SAW said:

Going through my parts box and found this. Anyone know what it is?
Tried the website but nothing. Thought is was something to do with gas rifles but not sure.

A friend of mine with more experience in such matters reckons it's for a closed bolt WE GBBR.

[Adolf Hamster]

31 minutes ago, Asomodai said:

A friend of mine with more experience in such matters reckons it's for a closed bolt WE GBBR.

 

this was my first thought, albeit a guess rather than any certainty.

[Speedbird_666]

The company seemed to specialise in WE GBBR stuff.

 

Website's been down for a while, but it was archived, albeit without pictures unfortunately;

https://web.archive.org/web/20100812195018/http://ts-custom.com/product.php?f_id=all&s_id=all

[SAW]

Thanks for your help guys, dug my old M4 out and yes you are right, it's for the closed bolt WE.