Bourne4red

I think a claw grip rail (like on my G3-SG1) may suffice.

Thanks for your extensive response, I’ve attached some examples from DEVGRU and the King Arms version. As you can see the mount is above the break lock, however the Nuprol version doesn’t seem to support the mount (unless glued or drilled, neither of which are preferable). Any other ideas?

Hi, can anyone offer any advice on how to mount a reflex scope on to the M79?

Thanks for the response, I was thinking... http://www.ebay.co.uk/itm/A-P-S-ASR-Upper-Receiver-Set-for-M4-M16-AEG-APS-Logo-BK-APS-AER008-URS-/321335706337?pt=UK_SportingGoods_Hunting_ShootingSports_ET&hash=item4ad119c2e1

I'm in the process of changing the upper receiver on my TM M4 S-System (as it has no delta screw). I want a free floating guard adaptable to this, so my question is: What's the best fit?

Sounds expensive, any advice where's best to source these?

Okay, I've attached some photos... as you can see the delta ring is one piece of metal. I've also attached an exploded diagram which also describes the delta ring as one piece. There is no thread within it, it's held in place with a single allen bolt. Any ideas guys?

Found this: http://dcpairsoft.com/TM_M4S_TD_1.htm

I think this best desribes the delta ring on the TM M4 S-System: The M4S is different than most other M4 AEGs in that the barrel is not held on by a barrel nut/delta ring. If you have the SIR off of it and the faux delta ring, all you have to do is loosen the grub screw on the bottom of the barrel and it should pull right out. The actual barrel does not extend into the reciever on an M4S. The grub screw I'm talking about is on the underside of the barrel, it is in the "fat" part of the barrel right in front of the delta ring, but before the flat part of the underside where the battery goes. The "fat" part of the barrel is actually part of the reciever on the M4S.

Hi, Looking to customise my TM M4 S-System with a long free floating guard but the delta ring is not a screw, is it still possible?