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King Armory KA-1212BR breacher for CGPD

Posted by KJ on 4/4/2014 to Gunsmithing

After 6+ years of being in Casa Grande, we finally got noticed by the local PD....not because this is a town of only 50,000 people....not because we've contacted them several times over the years....because they got to see the KA-1212BR in use at a training class with Chandler SWAT.  When they asked where they got the part, the irony was just too much.

We set up their Remington 870 breaching shotgun with a KA-1212BR so that the overall length was 14".  This sort of installation looks really sharp and handles like a dream but it involves a bit of additional machining work to make it happen.  The Rem870 has a barrel lug at 11-3/4" down the barrel, so in order to get the KA-1212BR installed so that the barrel is 14" afterwards requires milling a notch in the mounting collar to fit around the lug.  Then there is the issue of the KA-1212 and magazine cap/extension interfering with each other since they're trying to occupy the same space around the lug.  This requires milling a 1-1/4" radius into the bottom of the KA-1212 to clear the cap/extension.  Nothing too difficult, just more work than a basic install on a Mossberg 500 or an 18" Rem870 install.

This barrel also had a rifle sights on it which had to be desoldered and repositioned, this is a pretty easy job once you have your centerlines marked on the barrel.

The barrel was sandblasted, parkerized at Molykoted at AZEX

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King's "Culture Corner"
Interesting stories, gunsmithing projects, reviews of cigars and beers, political musings, and general fallout from middle-aged angst in a world gone mad.

 Politics and news
 Product reviews
 Cigars, beer, culture

 Mark Kessler, the latest Judas of the gun community
 Have ya checked out our "Gunsmith's Bench" episodes on Youtube?
 KA-1222A reviewed on (TTAG)
 Our report/letter to Congress on the 7N6 5.45x39 ammo ban
 Review of La Flor Dominicana Double Ligero "Digger"
 "Bad Idea" AOW builds
 King Armory SBS breacher build
 King Armory KA-1212BR breacher for CGPD
 Recent moves by the BATF to ban the importation of 5.45x39 7N6 ammo
 The interesting overlap of "Fast & Furious" and the Zimmerman case

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