Author: Tina Garcia

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New – .99¢ or $5.99 Flat Rate Shipping

We just hate paying high shipping fees.  Especially when we feel like it’s unreasonable.  For example, just a couple of days ago, we bought $14 worth of fittings for the drip irrigation we are putting into our high tunnel (Because in addition to being machine-gunners, we are also wanna-be farmers) and the shipping was $13.  So almost half of the order was for shipping!  Now these pieces might take up some space in a box, but they are plastic and so don’t weigh very much.  I’m sure that the actual shipping the company pays to send us our box will be less then what we were charged.  

That’s it!  This was the straw that broke the camel’s back and we decided to change our own shipping pricing.

From now on, most of our items will qualify for .99¢ shipping via USPS First Class mail.  These items are the smaller items that will fit into a padded envelope.  We don’t want you to buy a $3.99 spring and pay $6.00 shipping – that’s crazy!  

All other items – those that will mail in a box and will have some weight to them will be shipped with a $5.99 flat rate shipping charge via USPS First Class or Priority Mail.

If for any reason you would like your items that qualify for free shipping to ship via Priority Mail and/or with Insurance as opposed to First Class, we would be happy to accommodate your needs, but we will charge the $5.99 flat rate shipping fee plus any additional fee for insurance and please call in your order because our website is not smart enough to make this change.

Our pricing structure on all firearm shipping has not changed.  We will continue to charge the actual shipping fees we pay the common carriers.

Thank you so much for your continued business!

Happy Shooting…

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Now Buying Semi-Auto and/or Full-Auto Broken MACs, Registered Receivers, part sets, new or like new parts, magazines, and/or accessories for the MAC series semi-auto or full-auto machine guns.

Do you have a MAC open bolt semi-auto gun or full-auto machine gun that you want to sell?  Do you have one that is broken and just wasting space in the safe?  Did someone pass one down to you and you would rather have the money than the gun?  Do you have a registered receiver that was never built into a working gun?  Maybe you feel like your gun has been damaged beyond repair and you’d have just thrown it away years ago, but you just can’t bring yourself to do it.  Do you have part sets rusting away in your basement?  Do you have cases of grease gun, Zytel, Uzi, or Sten magazines that you don’t need?  Did you sell off your MAC and keep the accessories, but now you really don’t want them?

If any of the scenarios above sound like you then contact us.  We are now buying the guns that you don’t want.  Tell us your asking price and we will be happy to make you a reasonable offer and we will pay you in full as soon as we complete the transfer paperwork. 

We will only buy legal guns.  Please do not contact us if you have a full-auto gun that does not have paperwork.  We are not interested in contraband.

Please call or email us with what you have at:  410-404-0320 or sales@macmachineguns.com

Happy Shooting

Key words:  MAC Mac-10, M10, M10/9, M10/45, Cobray®, Ingram, Military Armament Corp., Jersey Arms Works, JAWS, Hatton Industries, Marshall Arms, MPA, Masterpiece Arms, M11, MAC-11, M11/9, M11A1, M11-380, Machine Gun, SMG, Repair, Practical Solutions, SWD, RPB, Lage, UZI, Grease gun, Zytel

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Will a Semi-Auto Safety Slide Function in your Full-Auto MAC Machine Gun?

Here is a common problem we get from customers:  “My MAC Machine Gun will only run with irregular burst fire regardless of the position of the selector lever.”  Often times when our customers have this problem, prior to coming to us for help they will throw parts at the problem such as a new bolt, new springs, new extractor, and the list will sometimes go on and on.  Then after researching the issue further the customer will discover that the Safety Slide is what is causing the problem.  The cheapest and most prevalent source for a new safety slide is an aluminum safety slide designed for the Semi-Auto MACs.  See picture below:

So this brings us to the title question.  Will a Semi-Auto Safety Slide function in your Full-Auto MAC Machine Gun?  This a good question and the short answer is yes but not for long.  OK, so that’s not a good enough answer.  Here’s the long answer and explanation.  

The original style safety slide was made of cast aluminum.  Now-a-days, most of the safety slides on the market are also cast aluminum.  Aluminum is a soft metal and when under heavy stress it will wear out pretty quickly.  In the case of an aluminum safety slide, when in use, it is constantly being compressed by the sear which keeps the sear from dropping too far and thus allowing the machine gun to shoot full auto without the trip getting in the way of the disconnector.  However, with each round, that steel sear wears away at the aluminum safety slide and after a certain point, the safety slide is worn away too far and the resulting malfunction is irregular burst fire. 

Sometimes the customer will purchase a safety slide designed for a semi-auto MAC because these are the cheapest and easiest to come by.  This option will work in the short run.  Go back to the picture listed above; look at the semi-auto safety slide furthest to the right.  See where the arrow is pointing to the worn area?  The semi-auto safety slide comes new with that cut out area.   So, not only is the area that holds the trip in place cut away when it’s new, but it’s also aluminum so it’s soft and will wear quickly. 

Now look at that same area on the full-auto safety slide just to the left.  As you can see, it’s not cut out in any way.  This allows for more material to hold the sear from dropping and thus allowing for full-auto fire.  This part will last much longer than the semi-auto safety because it will take more time for the sear to wear away at the aluminum.  This is what we call an actual repair, not just a temporary fix.

Lastly, look at the two safeties on the left.  These are designed and manufactured by us, Practical Solutions, as an improvement to the original design.  Not only do our safety slides have even more surface area to stop the sear travel than the original, but they are also made of steel.  Steel on steel will last much much longer than steel on aluminum. 

If you are having issues like these with your MAC, you can buy one of our safety slides or if you have questions, please call us at:  410-404-0320 or email us at:  sales@macmachineguns.com

Happy Shooting!

Key words:  MAC Mac-10, M10, M10/9, M10/45, Cobray®, Ingram, Military Armament Corp., Jersey Arms Works, JAWS, Hatton Industries, Marshall Arms, MPA, Masterpiece Arms, M11, MAC-11, M11/9, M11A1, M11-380, Machine Gun, SMG, Repair, Practical Solutions, SWD, RPB, Lage, Uzi, Grease gun, Zytel

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M11 Kit Update

We have fitted a few M11s with kits and they run just as reliably as the M10s.  We will begin working our way through the list as soon as we have our magazine perfected.

Magazines:  We have approximately 200 magazine bodies back from the laser welder and we are working the bugs out.  The 20 and 30 round mags work great.  The high cap mags, however, continue to be a bit of a problem. We tested several 40 round mags (in the white) with our local beta testers and it was thumbs up all the way. We then parkerized them and in an effort to save time and reduce costs, we replaced our follower with a Black Dog Machine follower. Before test firing the new follower, we sent them out to beta test volunteers.  As soon as we had those practice mags in the mail, we discovered that the Black Dog Machine followers (through no fault of their own) were too small for our spring. The parkerizing also made the inside so rough that the follower would not slide correctly. Our high cap mag that (in the white) would hold 42 rounds were now only allowing 17-20 rounds if you smashed the last rounds into the mag.  So, we have modified the followers so that they work with our springs in our mags and sent them out to our volunteers.  To avoid the rough interior wall caused by parkerizing, we have set up for bluing the mags to keep a smooth polished finish on the inside. We will be test firing the latest mags this week and are waiting for reports from our volunteers.

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Comparison of Magazines

We are currently bending the magazine bodies so that they can be sent out to the laser welder.  Below is a picture of the unfinished 12″ mag bodies w/ an H&K 270 20 round mag in the middle for comparison.

M11 Kits:  All of the programming for the parts is completed and we are currently machining the first run of 10 kits.  We expect to send these kits out to be coated late next week.