Cantilever picatinny rail for bipod mounting

[Boomer74]

We've all seen the spigot style bipod mounts (Versa-Pod & Atlas), which do a good job of pushing the bipod/axis forward and increasing stability.

I'm interested in a Pic-rail mount, whereas the rail protrudes from under the forearm of the stock to allow the mounting point to be out further. Same principle as the spigot.

Similar to the Ergo cantilever keymod mount (below), but more robust in order to allow the bipod to support the weight of the rifle (without deforming/breaking).

Or do guys just run an extra thick rail off the front (bottom pic) ? And I'm talking a 2-3" (6-7 slots) cantilever, nothing rediculously long, about 6-7" (15-17 slots) OAL.

This is for an aluminum chassis rifle. Does anyone know of such a beast ?

 

[Boomer74]

Bueller ?

 

[gstprecision]

It is an interesting idea. Obviously you need a strong base to make sure it does not flex/bend under the weight of the rifle. You will also require a good mounting point, probably 2 bolts through the stock at least.

I would think that this would add a lot of weight considering the stiffness required for the base, not sure of practical at all.

GST

 

[peacefrog]

How about just using a longer Steel Scope Pic. rail, and mount it under the fore end, with a couple of screws? As long as the bipod has a picatinny clamp you're good to go, or add a bipod adapter to the rail, and attach using the bipod sling swivel attachment if so equipped. As long as your not standing on the rifle, I think that might work...

 

[Boomer74]

It is an interesting idea. Obviously you need a strong base to make sure it does not flex/bend under the weight of the rifle.
You will also require a good mounting point, probably 2 bolts through the stock at least.

I would think that this would add a lot of weight considering the stiffness required for the base, not sure if practical at all.

GST

Thank you. And I agree with everything in the 1st part of your reply, but not neccessarily the 2nd part.
The 24-slot blank rail section (pic'd below) I have now will make 2 of what I'm after, and it currently weighs about 1lb.
So @ under 0.5lbs (or <8oz) each (some material will be removed), I wouldn't consider it "heavy" but would be plenty stiff enough.
Also there are 3 mounting holes on this chassis, 4.8" apart. And I want it, so I would consider it practical ! LoL

How about just using a longer Steel Scope Pic. rail, and mount it under the fore end, with a couple of screws?
As long as the bipod has a picatinny clamp you're good to go, or add a bipod adapter to the rail, and attach using the bipod sling swivel attachment if so equipped.
As long as your not standing on the rifle, I think that might work...

I considered steel, but was concerned with dis-similar metal corrosion. Both parts are/will be coated, but...?
But I do agree with you, steel would be ideal for strength & would cut down on the height profile.
I'm (hopefully) having this blank custom-machined by a local chap who's been known to flute bolts & barrels here-n-there...
Gonna chat with him about machining the final product (of my custom aluminum one) in steel, from scratch.

Cheers !

 

[freezer filler]

I did this on my LSS chassis by ordering their longest rail and mounting it one hole forward. I then picked the GG&G bipod for it's cantilever design. I did it because the chassis was silly short for a 22" barrel IMHO.

 

[Boomer74]

I did this on my LSS chassis by ordering their longest rail and mounting it one hole forward.
I then picked the GG&G bipod for it's cantilever design. I did it because the chassis was silly short for a 22" barrel IMHO.

Yeah, that's what I have (an LSS)... It's short, but light.

I designed a cantilever rail & I'm getting it custom made, maybe a few extra...

 

[Boomer74]

Dropped off the blank to the machinist... Will have the prototype in a couple weeks.

If any LSS owners want to extend the bipod mounting point on their rail, let me know. I can have more built.