Posted: 4/1/2026 11:56:13 AM EDT
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With all of the new data supporting what most of us have known for years with AR rails screwing with accuracy and precision, I wish someone would make a modern Swan Sleeve for various length rails. This would be beneficial to everyone that has ARs that are monolithic receiver builds. For instance, I have a couple of ARs that I have Arca rails on. I want to put a a bridged riser on them to reduce the amount of bend with using a bipod on the end, or IR lasers, or especially shooting with an Arca head on a triipod. |
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Yeah, some of the Old School GWOT rails would work, but I was thinking about something to use on your existing rails. I looked at PRI, and I can't believe they don't make anything either. With all of the "new" research making it's rounds about the POI change on gas guns, I would think there would be a market. |
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What rail are you using and what kinda POI shift are you seeing? I had a 6.5CM AR- Aero receivers and handguard- that exhibited no shift, whether it was shot off of a bag, bipod, Arca, or saddle. |
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All gas guns with all rails exhibit a POI shift that with minimal pressure applied on a tripod, barricade,slung, or even shooting a bipolar. There is an entire YouTube series covering what many of us have known for years.  The AR15 POI Shift Test Every Precision Shooter Needs to See |
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Originally Posted By Skg_Mre_Lght: All gas guns with all rails exhibit a POI shift that with minimal pressure applied on a tripod, barricade,slung, or even shooting a bipolar. There is an entire YouTube series covering what many of us have known for years.  https://www.youtube.com/watch?v=hSWLKZCrF8s |
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Originally Posted By bravo_677: So what would be the simple solution to mitigate POI shift when using a bipod? A billet receiver? Monolithic style receiver? Seems like the rail just transfers that force to the barrel nut area so would the handguard choice be not as important? Seems like a rail bridge would just be a half-assed attempt. Monolithic upper is the only way around it. |
"What is socialism? The most difficult and tortuous way to progress from capitalism to capitalism." -Stated at an intel conference, East Berlin, Oct. 1988
"Every election is a sort of advance auction sale of stolen goods." -H.L. Mencken
"Every election is a sort of advance auction sale of stolen goods." -H.L. Mencken
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Originally Posted By bravo_677: So what would be the simple solution to mitigate POI shift when using a bipod? A billet receiver? Monolithic style receiver? Seems like the rail just transfers that force to the barrel nut area so would the handguard choice be not as important? Springfield ATC (discontinued) Attached File |
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Originally Posted By bravo_677: So what would be the simple solution to mitigate POI shift when using a bipod? A billet receiver? Monolithic style receiver? Seems like the rail just transfers that force to the barrel nut area so would the handguard choice be not as important? Shooting with a different technique…. |
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Bcm riser To bad they couldn't just extend this a little. Enough for 2 clamps at least on the rail. |
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Long ago Armalite used to make such a device that would bridge from receiver to handguard. I got a couple on a closeout sale. I'm sure PRI could do it, just need to know there is a demand. Then again it's been like 15 years and they've never fixed the top rail height on their triangular handguards so they may not be the most responsive outfit out there. |
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I'm not adequately aluminumized for this thread. - gonzo_beyondo
CO, MI, OR - Please lobby your legislators to end discrimination against non-resident CCW permit holders
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