Mossberg 500 spas 12 kit install#
Mossberg 500 spas 12 kit full#

The pilots are secured to the end of the reamer with an e-clip.

The choke reamer requires a size pilot to follow the bore. If it doesnвЂ™t it most likely is and youвЂ™ll need to remove the chrome lining prior to machining. If you think a barrel is chrome lined, see if it takes cold blue. The high-speed steel reamer used here will not cut a chrome lined barrel (which isnвЂ™t a problem with a Mossberg). Additionally, Brownells provides great information on measuring for screw-in choke tubes here. More information on determining if a barrel wall is heavy enough can be found in my posts Choke tube installationВ and Removing a fixed choke from a shotgun barrel and installing a choke tube system. So assuming the bore is centered in the barrel (which it may or may not be) the barrel wall should be. A critical step in the case of the Mossberg 500 since the barrels are made thinner than those of Remington 870. Prior to reaming and tapping for theВ choke, barrel wall thickness needs to be evaluated to make sure it is adequate. If you donвЂ™t have access to a lathe and choke reamers, this step can be skipped, I juts prefer the increased versatility of an interchangeable choke system.

Mossberg 500 spas 12 kit install#

Since I have Rem Choke tooling, I decided to install a Rem Choke system on my Mossberg (IвЂ™m going to give this poor gun an identity crisis). Screw in choke tubes offer a great deal of flexibility. Looking at the cut off section of the barrel (above, bottom) next to the 18.5вЂі barrel (above, top), you can really appreciate how long it was. A quick pass with the hacksaw trims the barrel down to 18.5вЂі long. The 30вЂі barrel was too long for just about everything except goose hunting. and its authors, do not assume any responsibility, directly or indirectly for the safety of the readers attempting to follow any instructions or perform any of the tasks shown, or the use or misuse of any information contained herein, on this website. The contents of are produced for informational purposes only and should be performed by competent gunsmiths only. Cerakote stainless ovencure ceramic coatingДЄll lathe work is conducted on a Grizzly gunsmithвЂ™s lathe.Manson wall thickness gaugeВ 513-000-066.Starrett electronic calipersВ 749-008-013.Bushings for the tap and reamer,В these must be sized for your bore.Also, while we are working on the barrel, aВ new hole needs to be drilled and tapped for the bead sightВ to replace the one that is cut off.ДЇor this project, I ordered the following from Brownells: HereвЂ™s the plan the barrel will be cut and crowned from 30вЂіto 18.5вЂі, drilled and tapped for a bead sight, an interchangeable choke system installed, old wood stock replaced with a new synthetic one, metal finished in Cerakote and the standard plastic safety upgraded to an oversized metal one.ДЇirst step is to cut and crown the barrel to 18.5вЂі and install interchangeable choke tubes.

Mossberg 500 spas 12 kit full#

It came with a 30вЂі barrel and a fixed full choke, but IвЂ™ll be converting it over to a home defense type gun.ДЇor reference purposes, a Mossberg 500 schematic can be found here. The pictures donвЂ™t do it justice, it was in really rough shape. The shotgun featured isВ a Mossberg 500 I purchased for $120. The goal of this project is bringing new life to a beat up old gun. In this post we will take a look at a budget shotgun rebuild/conversion.