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.
-10%
LAR Grizzly Standard Rail Gas Block .625
Original price was: $34.99.$14.99Current price is: $14.99.
SIG P320 COMPACT 9MM 15 ROUND MAGAZINE
Original price was: $16.50.$14.85Current price is: $14.85.
MUP-1 80% P320 FRAME (SIG SAUER® CHASSIS)
Original price was: $110.00.$99.00Current price is: $99.00.
Features:
- Made from 316 stainless steel
- 9mm, 40 S&W, 357 SIG, and 45acp (with slight modifications).
Steps Remaining
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
Description
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