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Is My Flash Hider or Muzzle Brake Removable?

Now and then I get the question "Is my flash hider or muzzle brake removable?" The majority of rifles we build have removable A2 flash hiders but we also build rifles for states that have banned some features of modern sporting rifles. One of the banned features in those states is a flash hider or [...]

2017-01-14T14:07:00-05:00January 10th, 2017|Gunsmithing Tips|

Installing the Phase 5 Extended Bolt Release for .308

First make sure the weapon is unloaded! Then remove the upper from the lower half of the rifle. Using a 1/16" Allen wrench, remove the bolt catch pin. A long straight Allen wrench as pictured is easiest, but you can also use a small L shaped Allen wrench as well. Place the Phase 5 bolt [...]

2017-01-14T14:07:00-05:00January 10th, 2017|Gunsmithing Tips|

A warning about Suppressor use on Carbon Fiber rifles

With suppressor use becoming more and more legal and popular, it should be noted that the Carbon Fiber rifle was never designed for use with suppressors due to the increased back pressure. For anyone who has purchased a Carbon Fiber rifle and wishes to use a suppressor, the receivers have to be upgraded to aluminum. [...]

2017-01-14T14:10:14-05:00January 10th, 2017|Gunsmithing Tips|

“F” Marked Sight Base What is an “F” marked front sight base?

I get this question every now and then. "Why don't you use 'F' marked front sight bases?" I recently found this excellent video online that explains the original reason for the "F" marked front sight base, and how it really doesn't make a great deal of difference whether the front sight base is the taller [...]

2017-01-14T14:18:10-05:00January 10th, 2017|Gunsmithing Tips|

Installation of the Elftmann Tactical Drop In Trigger

First make sure rifle is unloaded! Then remove upper from lower. Now drive out the hammer and trigger pins to remove hammer, trigger and disconnector. Then unscrew and remove pistol grip screw and carefully remove being sure not to lose the safety detent or spring. Note orientation of detent for reinstallation later. Remove safety selector. [...]

2017-01-14T14:20:40-05:00January 10th, 2017|Gunsmithing Tips|

Multi-Caliber Rifle Video

We sent our friend Paul Glasco at Legally Armed America one of the first RMCS-4 Multi-Caliber Rifle Kits, and he put together a terrific video showing how all the components of this 4 caliber AR system work and interchange. Check it out on YouTube at: If you ever have questions about your rifle, you [...]

2017-01-14T14:23:33-05:00January 10th, 2017|Gunsmithing Tips|

Important Information Regarding Barrel Nuts and Barrel Removal on our Carbon Fiber Rifles

I've had a few customers call me since we introduced the Carbon Fiber rifles saying they were trying to install a free float handguard and the barrel nut would not fit on the upper receiver. The barrel nut on our Carbon Fiber rifles has a different diameter thread than a standard AR15 barrel nut. This [...]

2017-01-14T14:27:48-05:00January 10th, 2017|Gunsmithing Tips|

Beware .300 Blackout Ammo can be chambered in a 5.56/.223 chamber with catastrophic results.

This article is a little different from other gunsmithing tips and procedures. Since I have seen at least 3 returns come in with this problem I think a warning is in order. It can not be stressed enough to match your ammunition to the markings on the barrel! The following are photos of a rifle [...]

2017-01-14T14:07:00-05:00January 10th, 2017|Gunsmithing Tips|
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