How to Fix a Loose Sig Brace

Nathan S
by Nathan S

JerkingTheTrigger has created a step-by-step tutorial for shooters who are looking to move their Sig Sauer arm brace from one pistol receiver extension tube to another tube. The secret? Boil the brace. Tools needed? Minimal:

  • Stretched out SB15 Brace

  • Soup/Stock Pot – Note: This pot needs to be big enough to hold the SB15 and enough water to cover it. Preferably, it should be large enough that it has room to hold all of that and little more so it doesn’t boil over.

  • Water

  • Stove

  • Timer

  • Kitchen tongs

As it turns out, the brace will contract when exposed to high temperatures and will reset itself back to its production diameter. For those looking for detailed directions (or just a good guffaw at their breaking-it-down-barney-style instructions) can hit the link to the original article.

Nathan S
Nathan S

One of TFB's resident Jarheads, Nathan now works within the firearms industry. A consecutive Marine rifle and pistol expert, he enjoys local 3-gun, NFA, gunsmithing, MSR's, & high-speed gear. Nathan has traveled to over 30 countries working with US DoD & foreign MoDs.The above post is my opinion and does not reflect the views of any company or organization.

More by Nathan S

Join the conversation
2 of 9 comments
  • Al Al on Oct 21, 2014

    Much easier than that if you have a compressor. Air injected just under the edge with the air nozzle lets you slip it right off. No mess, no wait. Instant.

  • JLR84 JLR84 on Oct 21, 2014

    I've only ever had my stock on one tube, but I still find it to be too loose. Not so much that it wants to come off, but that it rotates too easily. I'd love a solution for that problem.