Tag: MPA 930SST

How to Convert a 20-Round Sten Magazine Back to 32-Rounds

How to Convert a 20-Round Sten Magazine Back to 32-Rounds

| March 6, 2015 | 0 Comments

The plastic magazine that came with my MasterPiece Arms 930SST “Mini” MAC 10 did not allow for proper feeding. It jammed after the first or second round. I needed more spare magazines, and I wasn’t going to try the plastic ones again. Centerfire Systems (at the time) was selling a 10-pack of 20-round Sten mags. […]

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MAC10 ATF eForm Approval

MAC10 ATF eForm Approval

| December 22, 2014 | 8 Comments

My Form 1 came back for my MasterPiece Arms MPA930SST yesterday. A few interesting factoids: Someone at the ATF was working at 6:22AM Central time on a Saturday. It took the ATF 36 days to process my stamp, including weekends. I am not sure if the ATF works on Sundays, so that’s 31 working days. […]

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MPA 930SST and VZ 58 Folding Stock

MPA 930SST and VZ 58 Folding Stock

| December 1, 2014 | 5 Comments

We’re now officially in week 3 of waiting for the stamp to come back on the MPA 930SST “Mini” MAC10. The surplus VZ58 stock from Czechoslovakia arrived last week, and I thought I would do a mockup. The rear of the MPA 930SST has not been modified to accept a stock yet, so what you […]

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MasterPiece Arms MPA 930SST Mini MAC 10 First Impressions Review

MasterPiece Arms MPA 930SST Mini MAC 10 First Impressions Review

| November 17, 2014 | 12 Comments

I knew I was screwed when I saw B. R. Kurtz’s MPA 30SST MAC-10. I had been kicking around the idea of getting a MAC-based firearm ever since we started our struggles with an SBR Glock enclosure. I laid the idea to rest, until the full-sized SBR MAC made its way to our site. There […]

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