semi-drop in ?
Firearm & Gun Forum - FireArmsTalk.com > Handguns > Semi-Auto Handguns > Glock Forum > semi-drop in ?

Reply
 
LinkBack Thread Tools Display Modes
Old 06-11-2008, 03:57 PM   #1
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
dango's Avatar
 
Join Date: Jun 2008
Posts: 6,177
Liked 3461 Times on 1934 Posts
Likes Given: 19298

Default semi-drop in ?

I,ts just me again. I.m considering the Bar-sto barrel for a GLOCK 23.I have,nt bought the gun yet but I will buy it next week.I am also interested in reload equipment,any advice on this matter would be helpful.To the main matter,what exactly do they mean by semi-drop in ? Is there any gun-smithing required ? DAZED and CONFUSED#*##*#**#:

__________________
dango is offline  
 
Reply With Quote

Join FirearmsTalk.com Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join FirearmsTalk.com Today! - Click Here


Old 06-11-2008, 05:57 PM   #2
Feedback Score: 0 reviews
 
Join Date: May 2008
Posts: 427
Default

If you don't elect to send your pistol to Bar-Sto and have them fit the barrel at the factory, then a, 'semi drop-in barrel' is the way to go. Both of my Glock Bar-Sto barrels are semi drop-in. I did the final minor fitting myself with a set of diamond knife sharpeners, a felt polishing wheel, and a Dremel Tool.

An extremely tight fitting barrel isn't necessary on a Glock - any Glock! (The rest of the pistol wouldn't keep up with such tight tolerances, anyway.) The semi drop-in tolerances are more than acceptable. If you're, in the least, mechanically inclined this is an easy and fun thing to do.

If you don't want to attempt final fitting, then, you have the option of buying 150 rounds of healthy SD ammo and shooting your new barrel in by pounding everything into place every time the pistol recoils. (NOT my preferred method of final barrel fitting!)

90% of the fitting takes place at the end of the barrel hood where it makes contact with the slide. The amount of metal you have to remove is very slight - Rarely more than .001". You need to take pains to maintain a straight edge. I used a small machinist's square; but, I've known people who just placed the end of the hood against a flat-lying piece of window glass - Which works just as well.

The final step is to polish up the work area with a felt wheel and either Flitz Polish or white (fine grit) jeweler's rouge. The whole process should take you less than 2 hours - And this is working very slowly and carefully. My first fitting job took me, almost, 3 hours; my second fitting job took less than 45 minutes.

Funny, because the last Bar-Sto barrel that I had a big name gunsmith install with a power grinding wheel was crooked at one end and rough surfaced. I ended up having to reinstall it, again, myself.

You can, also, mark the back of the hood and vertical chamber sides with lipstick or crayon. Then open and close the slide. You will see where the HARD contact areas are. If the barrel lugs are rubbing - after cycling the slide a few times - you'll, also, be able to see where you need to do a little more touch up work, too.

Like I said: This isn't difficult to do; and the amount of material that has to come off is either very little, or NONE AT ALL! Check the final fit by eye, by appearance, or by repeatedly cycling the action and looking for rub marks.

The other thing you can do is to simply fire the pistol. (If the slide closes all the way, then, 'Why not!' Just be sure to fire only one or two rounds at a time while checking between shots to make sure the pistol has returned to battery.) I used fine grit EZE-LAP diamond knife sharpening hones. They are the perfect tools for this job.

These two tools, a light gun oil as a whetting agent, and either a powered felt polishing wheel or a hand-held Q-Tip (and a lot of hand rubbing) are all that you need to do an excellent fitting job on one of Bar-Sto's semi drop-in barrels.

Fine Lap

Super Fine Lap

Flitz Polish
__________________

Last edited by G21.45; 06-11-2008 at 06:11 PM.
G21.45 is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
NEW Bruteforce Ar15/AK Pistol Drop leg Rig (holster) one of a kind ar15pistolpimp Firearm Accessories & Gear 25 05-22-2014 06:42 PM
M&P Mag Drop! rmruder Semi-Auto Handguns 11 03-11-2009 12:07 AM
You Could Have Heard A Pin Drop dnthmn2004 The Club House 7 02-25-2009 01:41 AM
drop of a bullet vertically vs. horizontally thepit56 The Club House 27 01-31-2008 09:51 PM
Barrel Drop plumbermario Gunsmithing Forum 0 05-30-2007 06:21 PM