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TANDEMKROSS Shock Block Bolt Buffer for Ruger PC Carbine
$25.49 $19.99 Save 22%
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Most Helpful Positive Review bolt buffer. excellent chiice
Great replacement to the one that ends a much better buffer platform and insert. Aluminum buffer and stainless steel inserts are a must have.
Most Helpful Negative Review Fell apart after ~500 rounds/2 weeks.
Needs a major design overhaul. The aluminum piece (red) is only as big as you see it. The rest of it is just two pins that only go 1mm into the aluminum and that's what holds the rubber shock absorbing piece against the red aluminum block (that's a 4 piece buffer design!). Imagine the force the pins...
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definitely makes a difference!

by Erik Barry, Verified Owner from MA, United States Written on January 24, 2026
So like the title says, it definitely works! I tend to tinker with my firearms, and try little upgrades, especially for the Ruger Charger. I noticed a difference right away, super easy to change out. I recommend highly
Pros:
  • None
Cons:
  • None especially at price point
Would recommend: Yes
Was it helpful to you? Yes | No

great addition

by Kev in Sugar Land, Verified Owner from TX, United States Written on November 4, 2025
Quality product especially when paired with a few of Tandemkross's other upgrade items. I did have a problem where the retainer nut would fall out when putting the recoil spring and buffer back in the slide. Rotating the retainer nut the opposite way seemed to do the trick. Gun shoots great, and im not scared to shoot really hot ammo in it now.
Pros:
  • Quality Price Appearance Design
Cons:
  • slightly tricky install
Best Used for:
  • +p Ammunition
Would recommend: Yes
0 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Pc carbine

by Belle, Verified Owner from MT, United States Written on June 24, 2025
Very good offering from. Tk. Better than mc carbo.
Would recommend: Yes
1 of 1 found the following review helpful.
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The Best Block Bolt Buffer Out There!

by Jack, Verified Owner from FL, United States Written on June 13, 2025
This is the best quality, manufactured buffer available. Light years ahead of the OEM, and no comparison to the other aftermarket (the other makes great things but) …Tandemkross wins here! It’s solid! Purchased many to have on hand. Tried and true. Don’t second guess this purchase! There is no other choice. You can order a different company version for comparison; and you’ll see what I’m talking about. This is what you’re looking for in a shock block bolt buffer.
Pros:
  • Quality
  • solid
  • Best in class
  • Design & Build
Cons:
  • Zero
Best Used for:
  • Pc carbine
Would recommend: Yes
1 of 1 found the following review helpful.
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One of the MUST DO upgrades to the PC Carbine

by Jack, Verified Owner from FL, United States Written on May 17, 2025
Tandemkross has manufactured a solid, well constructed bolt buffer that exceeded my expectations. Having compared this to similar competitor’s products, Tandemkross takes the prize. Worth the minimal cost of the investment for overall improvement.
Would recommend: Yes
1 of 1 found the following review helpful.
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