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Mauser conversion headquarters
45acp, 45 winchester magnum, 7.62*39 and more conversion kits

Now with Youtube How-To videos

Special notes on Spanish 1916 Mausers

The Spanish Mausers hitting the market now are from the Samco Global auction. They are very rough but can make for a good conversion for the low pressure 45acp. We do not recomend any other caliber conversion for these as they are of unknown heat treat. To get them to work with the 45acp, the bolt will need to be slightly modified on the bottom, which will destory the case hardening on the bolt head. We will upload pictures soon, on what is addinitally needed for the bolt. It appears to be a pretty easy conversion.

Available Mauser kits 8/15/15
The Mauser 45acp kits,
in stock

The 45acp kits feature a military profile barrel that is 16.5" long and uses our quick barrel change system were no gunsmithing needed. These kits are available for both the large ring and small ring Mauser actions.  The kits include a barrel, barrel lock nut, ejector and mag adapter. You need to supply the Colt magazine and  magazine catch which is just a Colt 1911 extended type.

Mauser 45acp kit support---If you are having difficulty getting the barrel threads to fit your rifle, you can send your action and barrel in for us to fit it, this will generally be more of a problem with the small ring threads but will gladly do it on any of the threads. Its best to fit the threads before you put a finish on them. We use Brownells tap/die sets to match up the threads. Please email for mailing info and turnaround time. Turn around time should be around 10-12 days. This is free service we offer.

These work with Mauser K98, Czech Vz22-Vz24 and Turkish Mausers the best. DO NOT USE YUGOSLAVIAN M48 rifles, it is very difficult to get them to work correctly due to the bolt face and feed ramp designs.

NOTE-all military barrels now feature threaded muzzles.

Mauser 45acp kits
 Military barrels with threaded muzzels
Threads are .578"-28

  Small ring kits back in stock-10/5/16

Mauser with the 7.62*39 kit installed.

Mauser 7.62*39 kits

Large and small ring kits now in stock 1/15/16

The 7.62*39 conversion kit
by Rhineland Arms is the most advanced kit available for the conversion of Mausers to this caliber. We feature a fully chambed barrel with lock ring and a mag adapter for use with Cz 527 magazines which greatly helps with feeding and simplicity in the conversion(adapter is held in by a single 1/8" pin).

Please note the Mauser bolt face is a bit too large for this caliber. The use of a oversize extractor and bolt face modifications will allow for perfect exraction and ejection as well. We are working on a easy conversion kit for that.

Mauser 7.62*39 kits
Mauser 7.62 * 39 barrels
Bore Specs=1:9.5 twist and a .3005-.302
bore/.3105-.312 groove
Muzzle threaded barrels are 5/8-24

 The 7.62* 39 conversion  barrels are finally available with and without threads for suppressors. Please note these barrels use our barrel nut system so no chambering is required and the surface is left with a slight texture. All barrels are fully chambered, 16.5" long and true bore for 7.62*39 and use our locking ring.





Mauser 7.62*39 barrels
Mauser magazine adapters for 7.62*39 and 6.5 Grendel
This is the new magazine adapter for large and small ring mausers. These are designed to be used with the Cz527 magazines and feature a single colum feed for more reliablilty.

Mauser 7.62*39 installation instructions
mag adatper


Mauser kits in development
  Mauser commerical receivers available from Sarco, click here for $300 we have not had a chance to get one of these in and review them yet. This is a commercial receier and most likely does not have the thumb slot we use for the extended ejector. This receiver will most likely be great for the 6.5 and 300blackout conversions.
Mauser k98 aluminum stocks in development. We have the next generation aluminum stocks for the Mauser series of rifles on the way sometime in the fall/winter of 2016. Estimated price around $275.00

The stocks will take 308 Ruger or AI mags. These will work with 308 or 7.72*39.
Mauser 45magnum   conversions. The one shown uses M1 carbine mags, we are trying to get away from that for a much simplified conversion. It should work with multiple pistol calibers when we are done. Opening the door to many more calibers for the Mauser.
6.5 Grendel and 300 Blackout mauser conversions  We would love to use these calibers, but the rim diameter is too small to use for easy conversions.

   Mauser Updates

Mauser 45acp Youtube How-To videos

 old instructions on Mauser conversions  Mauser 45acp


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