250Z New Prototype Stock For the Barra 250z

[Loren]

I have been working on this one for a while. This is not quiet the final prototype but very close. I have a couple of minor cosmetic geometry changes to make on the stock and some refinements to the trigger guard. Then it will be good to go. I will be making the design in wood and composite versions in both Glass Fiber and Carbon Fiber.

I do not have the safety bolt install but it will and function beautifully.

 

[Bladefin]

I'd love to see a pic from the butt forward to see the hammer adjustment lug. Have you factored access to that in your design?

 

[Loren]

I'd love to see a pic from the butt forward to see the hammer adjustment lug. Have you factored access to that in your design?

Right now it does not have access to the hammer spring screw. It is something I can look at adding.

 

[Bladefin]

Right now it does not have access to the hammer spring screw. It is something I can look at adding.

I think if you found a way to include it, that would be the final touch for them to sell pretty good. Having to remove the butt stock is already a PITA as it is. Having to pull the whole thing apart is, in my mind, going to narrow your target audience down.

 

[Dogowski]

I have been working on this one for a while. This is not quiet the final prototype but very close. I have a couple of minor cosmetic geometry changes to make on the stock and some refinements to the trigger guard. Then it will be good to go. I will be making the design in wood and composite versions in both Glass Fiber and Carbon Fiber.

I do not have the safety bolt install but it will and function beautifully.

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Great work on your stock design so far! Really looks sleek. I'll be in line to purchase one for my 250z 22 caliber when ready.

 

[kcender]

I have been working on this one for a while. This is not quiet the final prototype but very close. I have a couple of minor cosmetic geometry changes to make on the stock and some refinements to the trigger guard. Then it will be good to go. I will be making the design in wood and composite versions in both Glass Fiber and Carbon Fiber.

I do not have the safety bolt install but it will and function beautifully.

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Very elegant and refined looking. Nice job! The ability to lengthen the pull via butt plates would be a great feature as well. Any plans for QD sockets or a bi-pod attachment?

 

[Loren]

Very elegant and refined looking. Nice job! The ability to lengthen the pull via butt plates would be a great feature as well. Any plans for QD sockets or a bi-pod attachment?

Thanks!
I can make a custom LOP. Right now I have the LOP at approximately 13.75”.
It will have QD sling swivels and an M-Lok panel on the bottom of the forearm.

 

[kcender]

I wish you luck my friend! I admire what you are doing. Thanks for the feedback.

 

[Loren]

I wish you luck my friend! I admire what you are doing. Thanks for the feedback.

Thanks for the input!

 

[Loren]

I added access to the hammer spring adjuster while the action is still in the stock.





If you didn't see in the earlier photo the regulator adjustment access in in the stock.

 

[Jaabaa]

This! Is great,

 

[Bladefin]

I added access to the hammer spring adjuster while the action is still in the stock.

If you didn't see in the earlier photo the regulator adjustment access in in the stock.

That really looks incredible.

Are you working with the original version of the 250Z or the second version with a revised hammer lug screw?
The new version allows a smaller internal lug to protrude out the back much further than the original.

This post has pics that show the new version but the lug will come further out.

W

250Z Post in thread 'Barra 250z flush hammer spring? 0.0'

Sep 6, 2025

Ok so this is the screw I have but still is the top flush or where the threads start flush and why when my hammer spring is so far back it almost comes out it than shoots the fastest not accurate no but I’m having a hard time grasping that

• Walker55

• 

 

[Loren]

That really looks incredible.

Are you working with the original version of the 250Z or the second version with a revised hammer lug screw?
The new version allows a smaller internal lug to protrude out the back much further than the original.

This post has pics that show the new version but the lug will come further out.

W

250Z Post in thread 'Barra 250z flush hammer spring? 0.0'

Sep 6, 2025

Ok so this is the screw I have but still is the top flush or where the threads start flush and why when my hammer spring is so far back it almost comes out it than shoots the fastest not accurate no but I’m having a hard time grasping that

• Walker55

• 

I have the original version of the hammer spring adjuster, but I did see the revised version and made provisions in the stock to the adjuster could be adjusted rearward beyond the action. Do you a have distance that I should be taking into account?

 

[Bladefin]

I have the original version of the hammer spring adjuster, but I did see the revised version and made provisions in the stock to the adjuster could be adjusted rearward beyond the action. Do you a have distance that I should be taking into account?

Excellent, I believe doing that will save you a lot of after sale headaches!

I can get you a rearward measurement and lug diameter when I get home. The latest will be tomorrow morning.

 

[Loren]

Excellent, I believe doing that will save you a lot of after sale headaches!

I can get you a rearward measurement and lug diameter when I get home. The latest will be tomorrow morning.

Thanks, I would appreciate that!

 

[Bladefin]

Thanks, I would appreciate that!

The lug is 11.93mm in diameter. So, 12mm.

It protrudes out the back 11.75mm with the 1st thread engaged. The stock spring is making contact with the lug at this point. So, 12mm again.

The diameter of the slotted end is 10mm and is 4mm tall before the treads.

 

[Loren]

Thanks! Is it sticking out that much with load on the spring?

 

[Bladefin]

Thanks! Is it sticking out that much with load on the spring?

No. But I've had the best performance with a similar spring cut down so there's no load on it uncocked.

 

[Loren]

No. But I've had the best performance with a similar spring cut down so there's no load on it uncocked.

I made the relief cut just a little deeper and it is plenty big in diameter.

I sure appreciate the input!

 

[MidoriDragon]

I shot about 2000 pellets through my 250z, and the pistol grip broke off. Now it's loose, and the plastic that holds on to the screw has cracked. I tried JBweld plastic, but it broke again.

I am interested in the replacement stock you made for this gun. I would also like to know more details since I have attachments for my airgun. I have an Mlock bipod and a sling using the Mlock swivel on the front and a swivel that attaches to the AR-style stock.

Will this be available for purchase?