[TexasVine]

I have ordered the heavy weight bolt replacement from Kel Tec for my Sub 2K. I recently installed the Tacticool buffer cylinder to reduce recoil. With the new heavy bolt upgrade, will the Tacicool buffer cylinder be necessary or make a difference?

Thanks,

Mike

 

[H2OMAN]

I installed a nice recoil pad from ATI, but not because of any recoil, I installed it because the teeth on the butt stock where chewing at my skin through my t-shirt.

I run a heavy bolt without a buffer.

 

[gbdeamer]

I installed a nice recoil pad from ATI, but not because of any recoil, I installed it because the teeth on the butt stock where chewing at my skin through my t-shirt.

I run a heavy bolt without a buffer.

Did you notice a big difference when you started using the heavy bolt?

 

[H2OMAN]

Did you notice a big difference when you started using the heavy bolt?

I never fired it without the heavy bolt.

 

[DRT]

Get the sumo charging handle from twisted industries. It adds twice the incremental weight that the heavy bolt does and only costs $26. You can get rid of that buffer after you add the heavy bolt and sumo handle.

 

[Dan-O]

I concur with DRT. Same setup i have and love it.

 

[lab-rat]

Can I use both the sumo heavy charging handle from twisted industries, and the heavy bolt from Kel-tec at the same time, or would that be adding too much weight to the bolt assembly? I am trying to reduce stress on a .40S&W gen 1 s2k sbr with a can. There must some ideal weight I should be trying to reach to offset the added back pressure from the can.

 

[DRT]

Can I use both the sumo heavy charging handle from twisted industries, and the heavy bolt from Kel-tec at the same time, or would that be adding too much weight to the bolt assembly? I am trying to reduce stress on a .40S&W gen 1 s2k sbr with a can. There must some ideal weight I should be trying to reach to offset the added back pressure from the can.

I've run both on my .40 with 100% reliability. I'd add a bit more weight if I could. Both may be too much on a 9mm running 115gr ammo, but you're good to go if you have a .40

 

[tlacour]

I added the brass bolt and the sumo handle and noticed a big difference on my gen2 40cal.

Recoil wasn't too bad before, but is like a small 22 rifle now. Much quicker back to target when rapid firing.

I was having FTEs about every 30rnds or so before and was not very confident in the KelTec's dependability. I put 300rnds through it this past weekend with the heavier bolt and handle with no hiccups at all. I am much more confident in the reliability of thus gun now.

Tony

 

[Artofgolf]

AHOY new member

... I am much more confident in the reliability of thus gun now. Tony

Welcome aboard the KTOG, tiacour

Good to hear the subbie is GTG now!
I'm a fan of the brass bolt also ~ works well for me.

 

[TexasVine]

Installed the heavy bolt replacement from Kel-Tec. Shoots great, seems to be a good upgrade.

 

[H2OMAN]

I liked it enough that I ordered one for my other S2K.

 

[nitetrain]

Are you guys installing the heavy brass bolt on the gen 1 or gen2?

 

[3wbdriver]

Are you guys installing the heavy brass bolt on the gen 1 or gen2?

Yes. It is the same bolt.

 

[DRT]

I added the brass bolt and the sumo handle and noticed a big difference on my gen2 40cal.

Recoil wasn't too bad before, but is like a small 22 rifle now. Much quicker back to target when rapid firing.

I was having FTEs about every 30rnds or so before and was not very confident in the KelTec's dependability. I put 300rnds through it this past weekend with the heavier bolt and handle with no hiccups at all. I am much more confident in the reliability of thus gun now.

Tony

That's because the extra weight of the handle and bolt slows down the bolt just enough to improve ejection and feeding reliability.. I hope someone from keltec is paying attention.

 

[H2OMAN]

I hope someone from keltec is paying attention.

They are, and they responded with the heavy bolt.

 

[DRT]

They are, and they responded with the heavy bolt.

The heavy bolt is a nice start but,.they should produce all .40s with it from the factory. Secondly it only adds about 34 grams of incremental weight . The heavy handle adds 66 grams. In my mind , even the heavy bolt isn't enough heavier for a .40. Bottom line is the as-built bolt assembly should be at least 100g heavier on a .40. Maybe that means they make the receiver tube a bit longer to fit a longer (heavier) bolt extension, in addition to making it out of brass.

 

[gbdeamer]

The heavy bolt is a nice start but,.they should produce all .40s with it from the factory. Secondly it only adds about 34 grams of incremental weight . The heavy handle adds 66 grams. In my mind , even the heavy bolt isn't enough heavier for a .40. Bottom line is the as-built bolt assembly should be at least 100g heavier on a .40. Maybe that means they make the receiver tube a bit longer to fit a longer (heavier) bolt extension, in addition to making it out of brass.

I would imagine they have lots of discussions like this.

I think a challenge they run into is that they're trying to make a base weapon that's scaleable to work with both .40 and 9mm and across manufacturers while keeping costs down.

If they creep too close to the "AR15" market price-wise, then they could end up losing their place in the market.

Based on feedback here I'm probably going to order the heavy bolt as I think it sounds like a meaningful improvement (like the MUST-HAVE aluminum trigger).

 

[H2OMAN]

Kel-Tec produces a good product, and the aftermarket is actively working to make it a better product. It's kind of like muscle cars of the 60's & 70's, you bought what was available and then you head for the speed shop for the upgrade goodies.

 

[850sub]

They've been producing these guns for well over a decade. Most run with no problems at all. My .40 sub had some teething issues. But they cleared up after a couple boxes of ammo. No heavy bolt needed. But I am glad they offer options to further refine the system.
Has anyone used the heavy bolt with 9mm?