Reduced Report .25 R3M Std
Hello guys and Happy New Year.
I know this topic has come up several times with multiple options. I thought I would share a simple DIY slip-on that I’ve been running for several months with good results.
I used stuff laying around my house. 1″ ID black poly pipe, 1/2″ OD poly pipe, 3/8″ wide self adhesive felt weather stripping, epoxy and a 1″ X 3/8″ spacer.
I simply epoxy’d the spacer in the front. This makes a decent end with adequate clearance for inaccuracy that may be inherent in a slip-on design. On a belt sander, I flattened the end of the tube so that it would slip on the end of the Edgun shroud with clearance between the slipon LDC and the air reservoir. I drilled holes equally spaced around the circumference of the LDC immediately in front of the end of the Edgun shroud. I wrapped and adhered a layer of the weather stripping to the 1/2 inch pipe. This is then a very good fit in the id of the LDC and serves as an end stop as well as baffling over the drilled holes. I finished by sanding the pipe to a cool looking suede looking finish and touched up the nylon spacer with a sharpie.
Took about 40 minutes and made from scrap pieces valued at about $3.
This will sound really goofy, but I wrapped 2″ clear packing tape around my Edgun shroud at the very end to build it up for a snug slip-On fit.
I think it looks OK and it works surprisingly well for what it is. As far as accuracy… Edgun is amazing and there is no impact at all with this LDC. If the wind cooperates it will hold 1″ at 100 yards provided I do my part.
All Replies
Carefully done, you can’t even tell it’s been modified and you retain the original length. Other than replace the shroud, this proved to be the most effective method.
Yeah on the “lonely” sport. There are a lot of us, but we are scattered all over the globe.
Best wishes…Oh, don’t be offended if a forum member sneaks up behind you and pulls your shorts down…we don’t have many rules here and there are some interesting individuals who contribute!
Hoot:
Can you please guide about the size of the vents after drilling ?
Joe, by simply enlarging the rear holes in the OEM shroud, this permits a substantial amount of air pressure to escape BEFORE it is forced out the baffled end. This, in effect, artificially enlarges the shroud volume – or achieves the same effect!!! We found it to work quite well and not require any additional moderators. Just don’t get too large, as this will defeat the process by creating a “whoosh” sound when you shoot, as the air exits the rear vents. I went about triple the original size and stopped there.
Carefully done, you can’t even tell it’s been modified and you retain the original length. Other than replace the shroud, this proved to be the most effective method.
Yeah on the “lonely” sport. There are a lot of us, but we are scattered all over the globe.
Best wishes…Oh, don’t be offended if a forum member sneaks up behind you and pulls your shorts down…we don’t have many rules here and there are some interesting individuals who contribute!
Hoot:
xbangu,
I misread your post. No, I did not drill holes in the id tube. This tube served only to provide stability to the weather stripping and to sort of compress the weather stripping between the two tubes. It helps to muffle the escaping air.
Hoot,
Thanks for your reply. After reading lots of posts on this topic I came away with the impression that the stock shroud simply does not have enough air volume for the level of suppression many folks wanted to achieve. I thought I would save myself the trouble and try to add some volume up front. I sure wish I knew some more local folks that were in to these rifles. It would be great to shoot and compare notes. Clearly there are several of you guys with tons of experience. I’m really getting in to this, but relatively new to the tinkering and tweaking.
Joe
Back in 2013 we had quite a discussion regarding the easiest way to reduce sound on an Edgun.
The means that worked well was to simply enlarge the tiny vent holes at the base of the shroud. This was done by drilling the holes out to about twice or three times their OEM size. It helped a lot. We also found out that making the holes resulted in a diminishing return. Too big, and you get blow-by noise from the escaping air pressure from the holes.
After you’ve drilled them out, twirl a permanent black marker pen inside the holes to blacken the exposed aluminum. This worked quite well.
Hoot:
No. Edgun shroud is not modified at all.
Look good, did you drills any holes in the id tube?
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Hey Hsmnz,
If you make this mod could you post what size drill bit you used and your impressions on how well it worked? I was thinking of making the same modification. Your impressions would be much appreciated. Not that I do not trust Uncle Hoots assessment, but his brain is deteriorating at such an alarming rate getting a second opinion is a good idea.
Thanks…