Return to JSD SUPPLY MUP-1 80% FRAME INSERT FOR SIG SAUER® P320 MODULAR CHASSIS - MANUAL SAFETY MUP-1-SAFETY
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5 of 5 Outstanding service May 3, 2024
: JJ from United States  
MAS only carries quality items.  The big surprise was the phone call to explain a question I had sent an email about.  Usually it takes days to get response from any vendor.  Well, I recieved a call within an hour!  You just can’t find that kind of service anymore.  It made a loyal customer out of me for sure.

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5 of 5 MUP-1 April 24, 2024
: JL from Minneapolis  
Looks solid at first assessment. I'm excited to track down a jig and get to work on it!

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5 of 5 Perfect April 24, 2024
: Ted Parker from Tucson, AZ United States  
Signed up for notification when the product was in stock, wasn't sure if JSD was going to produce it anymore given the anti 2A attitude in the recent years, but was extremely pleased with the availability and delivery schedule. Have also ordered one without manual safety over eight weeks ago from someone else and still never received it. Would definitely order from masdefence again!

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5 of 5 Great part April 23, 2024
: Michael Halleck from Toledo, OH United States  
Mas Defense has always been excellent quality and super fast shipping. Great job all!

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5 of 5 Great product February 13, 2024
: George from Florence, AL United States  
Will definitely be ordering again. Good prices and fast shipping

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5 of 5 Quick delivery February 7, 2024
: bb from Cincinnati, OH United States  
This item was shipped quickly and was well packed.  Still working on completing it.

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