If you work on your own firearms, chances are you will run into a frozen screw at one time or another—this is especially true if you are a fan of switching out scopes as these screws tend to stick and freeze more frequently. Older firearms and used firearms also experience this problem, as age and user inexperience (Loctite) can lead to screws that won’t budge.
Follow these tips for removing a frozen gun screw—the sooner you get that screw unstuck, the sooner you can go shoot your .223 ammo.
PB B’laster Penetrant
A non-evaporating lubricant that penetrates rusted or frozen parts affected by rust and corrosion. This isn’t an immediate process; you’ll want to let it soak in to work its magic. Letting it sit will allow the solvent to penetrate the stuck screw and cause any remaining oil to evaporate, leaving a very light film.
A tool that delivers strong, sudden downward rotational force, an impact screwdriver will break loose frozen or rusty screws easily. This tool can be difficult to master. You’ll want to turn the tool in the direction you want movement—do this while lightly tapping the handle with a lightweight hammer to get quick rotational force. Then, secure the gun barrel and apply firm downward pressure on the driver and turn counter-clockwise. These steps should loosen any frozen screws.
A bit of heat
Try using a handheld, small flame, butane torch. You’ll want to wave the flame back and forth over the frozen screw slowly, but don’t leave the flame on the screw. This will break down any Loctite that could be holding the screw tight.
Kroil touts itself as the oil that creeps. It can creep into a millionth of an inch space to dissolve rust and lubricate frozen metal parts. For frozen gun screws, you should allow the Kroil oil to penetrate over a 24-hour period.
Drill it out
To drill out a screw, you’ll need a clamp and a center drill. It is important to use only a center drill as any other will do more harm than good. First, clamp your gun to keep it secure, then according to Gun Digest, “You do not have to match the drill to the screw head diameter. So long as the drill is larger than the threaded portion of the screw when you get down to the threads, the head will come off.” This method can cause damage to the threading, so bear that in mind if you use it.
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