Arca rail covers

deersniper

Protecting the Sheep
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Minuteman
  • Feb 22, 2007
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    Anyone make one like this. Ideally able to be peeled off like the magpuls. Maybe we should petition magpul

    2E78F779-8E8B-4796-9330-7B56FFC76A7C.jpeg
     
    Anyone make one like this. Ideally able to be peeled off like the magpuls. Maybe we should petition magpul
    I think you are on to something about there being a need/demand for it. KMW also talked about unprotected arcas forends on work guns tend to get wrecked (this was in the KMW chassis thread).

    AFAIK, SIG makes one for the cross , it hasn't been released yet to the public, but there are pics of it online. (1/2 cove for its gen2 arca rail forend)
    SIG Cross arca cover.jpg
     
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    I could print these.

    As you can see in the sig cross, they need to be make specific to the gun, or else it'll stick out and be funky.

    Get me forends and it can happen, and not at the quality you think of from typical printing :)
    Would they be flexible to pull off. ? Instead of slide off.

    So bipod can stay in front. Pull off a section of cover to slap tripod on ?
     
    Would they be flexible to pull off. ? Instead of slide off.

    So bipod can stay in front. Pull off a section of cover to slap tripod on ?
    I believe Nylon 11 could be well suited for this, without resorting to true flexibles which are a hassle and quite expensive to do in the quality I desire.

    It could be done as two pieces that snap fit together if a single piece doesn't work.
     
    I believe Nylon 11 could be well suited for this, without resorting to true flexibles which are a hassle and quite expensive to do in the quality I desire.

    It could be done as two pieces that snap fit together if a single piece doesn't work.
    I can measure with calipers till my arms fall off but sending chassis is pain
     
    Could you make one that is say 20” long and customer can just cut the lengths they need. Possibly slide on to arca with just enough tension to stay in place? That may also make it work for multiple front ends or sections of arca.
     
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    Could you make one that is say 20” long and customer can just cut the lengths they need. Possibly slide on to arca with just enough tension to stay in place? That may also make it work for multiple front ends or sections of arca.
    Negatory there. Going that long with flexibles becomes a warp fest.

    Firm slide on fit, yes. Flex fit, yes, and hopefully with Nylon 11 which is my specialty
     
    Element 4.0
    AT-X
    Element looks pretty easy as it is damn near just arca width.

    AT-X may be easy, I did a scan of an AX-SR will need to look if it's close. If not they aren't very expensive to ship without a rifle inside. Some pics from head on and measurements may be enough to get it pretty close.
     
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    Element looks pretty easy as it is damn near just arca width.

    AT-X may be easy, I did a scan of an AX-SR will need to look if it's close. If not they aren't very expensive to ship without a rifle inside. Some pics from head on and measurements may be enough to get it pretty close.
    The vision is Acra width too.
     
    @Gun_enthusiast

    So, some time ago I bought the Amazon one here
    • Really only works if you slip it on vs snap it on (but I knew this going in)
    • But it’s extremely stiff…can barely slip it on, and removing it is even harder
    • The fatal issue for me is that it doesn’t really even improve comfort. It has a too narrow side profile.
    The KRG W3 aluminum Arca forend gets it right, and its cross-section profile is what dudes who are designing these things should copy.

    793E8ED3-6667-4928-940F-3DBF356FDD51.jpeg

    Pro-tip: it’s the space ABOVE the arca that provides hand comfort. BUT IGNORE THIS PIC, see below pic.

    Edit: this is a better pic. The above photo is from where the X is below…you never grab the forend there so I gave you a dumb pic.

    The fat circled flare-out area below is the key bit. It also gives you a place to anchor your thumb and fingers. It allows you to control the up/down movement of the rifle when handling it, like when hoisting it onto the tripod, carrying it, etc.

    B4F397DB-BB84-4D9A-BFA8-C68354C315FF.jpeg
     
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    I can ask my associate doing the cad drawings if he can make a set that works with the krg forend. I think that if we just take a small amount off of the top where it wraps around the dovetail, our current design will probably fit great. Would you prefer something with a more rounded profile, as shown 3rd from the right in my samples photo? I may be able to get you a prototype set to try out.
     
    I can ask my associate doing the cad drawings if he can make a set that works with the krg forend. I think that if we just take a small amount off of the top where it wraps around the dovetail, our current design will probably fit great. Would you prefer something with a more rounded profile, as shown 3rd from the right in my samples photo? I may be able to get you a prototype set to try out.
    I think we have miscommunicated.

    I am saying that the profile of that KRG Aluminum Arca forend (yellow-circled bumpout area, NOT the very front of it! Ignore my first pic) is shaped so well that it doesn’t hurt the hand. You don’t even feel the Arca edge. One doesn’t need your product on that forend.

    I’m saying guys like you who are making comfort covers for Arca rails should really copy the KRG forend profile.

    The key is that budge that they have, way above the Arca, on the side of the forend. If your cover is merely as wide as that bulge it’s going to feel like a u-boat. The top of the KRG bump is the key; it provides two things:
    1. a spot for your thumb and fingers to lock onto, and
    2. because your fingers grip the thinner part of the forend, it makes the forend feel less thick. It’s genius.

    And it’s not enough to just have a small radius curve like the S2Delta ones that I bought from Amazon (below and linked above in my prev post). That hurts too.
    1739679073451.png

    1739679136293.png

    1739679166877.png

    These S2Delta covers above are painful. And I can barely remove them, but that’s a different story.


    Perhaps your right two designs (below) would not hurt, but see that u-boat profile?

    I’m a little sketchy on the far left one and maybe on the second to left too.
    1739678936146.jpeg


    I don’t think you need to make the covers so vertically thick, but I suggest you extend the cover up past the Arca onto the side of the forend (where the KRG bump is).

    That might give you some other fitment issues, or it might not. You could make a design for AR’s, which are among the worst offenders for Arca pain, and experiment with designs for flat-bottomed chassis rifles.

    Consider user-mouldable material for other use-cases. No idea if heat-mouldable kydex screwed to an Arca cover (made of some other material) would be an option.

    Edit: I think the “ribbed for pleasure“ things on your covers are not going to be that useful outside of some AR bros that are obsessed with pulling the gun into the shoulder while shooting offhand. In fact, those might hurt as well, especially when shooting in the cold (I’m in MN).

    When it’s really cold, even with thin gloves, crap that you don’t even think about when it’s warm starts really mattering. Ever catch a hard-thrown football with cold bare hands when it’s even mildly cold? Like 32°F?

    Your damn hands feel like Thor smacked them.
     
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    I guess you could use one of your two thick designs (far right, above) and route out a KRG-like finger groove on each side. It would give you a less integrated looking design but it would fit whatever stock you put it on.

    It would be cool to have a quick release on any design too, so you could get it off quickly (or slide it forward if the Arca rail is long enough).