MUP-1 80% P320 Frame (Sig Sauer® Chassis)
Sig Sauer® 80% Universal Insert (JSD MUP-1) is Compatible with the Sig Sauer® P320 multi caliber/frame modular weapons system. Allowing you to build subcompact, compact, carry, and full framed firearms all using the same modular chassis across multiple calibers.
*Please allow up to 4-6 weeks to ship
Available on backorder
Note: your jurisdiction may require you to be a licensed FFL or licensed gunsmith to purchase this product.
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- Made from 316 stainless steel
- 9mm, 40 S&W, 357 SIG, and 45acp (with slight modifications).
To finish this insert and make it ready for use, the following steps must be completed:
- Drill all holes
- Bend side rails
- Trim rails to size