Building a Hybrid Yugoslav M70B1 from a Stub with Screws

Building a Hybrid Yugoslav M70B1 from a Stub with Screws

George Spafford is building a replica of the Yugo M70B rifle using a stub parts kit. A new installment will appear here every Friday

Loctite and Planning for Refinishing

Screws were backed out, Loctite 2760 thread locker was applied, screws reinserted and then screwed down tight.

There was a gap of a few weeks between the range and finishing the build due to other obligations. Early one Saturday morning with my coffee cup firmly in hand I got the rifle out, stripped it back apart and thoroughly degreased the rifle. I removed each screw, applied Loctite 2760, their high-strength impact resistant formula, and re-tightened each.


After my experience at the range test firing the rifle, it did make it clear that checking the screws periodically in the future to make sure they remaining tight would be a good idea — even with the Loc-Title — as part of cleaning when coming back to the range.


Safety Note: Going forward, if you use this method to build a rifle, confirm the screws are tight during each cleaning. So far, after almost a year and hundreds of rounds, the Loctite-treated screws have not showed any sign of coming loose.

Preparing to Refinish the Rifle

A very durable firearms finish that I prefer comprises of five steps steps — clean, abrasive blast the metal parts, clean like a zealot, Parkerize, and then apply Molyresin. In this case, I opted for their gloss black as it has a shiny wet blue look to it. I have followed this five-step approach for two years now and am very happy with the results. What may surprise you is how easy this is. Parkerizing may seem like an arcane black art but it is not.

With that said, you can get very good results without Parkerizing — it just makes the end result that much more durable because surface preparation is the critical key. Spray-on finishes really benefit by having an etched surface to "grab" on to. I used to just clean, abrasive blast, do a final cleaning and then spray on the finish. This has held up very well. Use Parkerizing to lay a foundation makes an even more durable finish.


Now I should tell you what doesn't work — you should not simply spray a weapons finish to metal that hasn't been prepped. It will chip off on areas with a lot of contact such as where the dust cover contacts the receiver. I tried vigorous sanding once and had very inconsistent results. I only recommend two methods — abrasive blasting and then application of the finish or abrasive blasting, Parkerizing and then application of the finish.

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Recommended Articles

See More Recommendations

Popular Videos

Hornady Kestrel 5700 Ballistics Weather Meter with Hornady 4DOF

Hornady Kestrel 5700 Ballistics Weather Meter with Hornady 4DOF

The Hornady Kestrel 5700 combines complete onsite environmental measurements with Hornady 4DOF trajectory solutions.

Transcoded: FANIssue11-SpringfieldEdgeEVAC

Transcoded: FANIssue11-SpringfieldEdgeEVAC

Patrick Sweeney of Firearms News shows off the Springfield Edge AR pistol with a folding arm brace.

Pioneer Arms PPS-43C Pistol

Pioneer Arms PPS-43C Pistol

The PPS-43 served Poland and the Russians during WWII. It is now available as a pistol for the US market.

See More Popular Videos

Trending Articles

The Mossberg 590A1 Retro offers the proven durability and reliability of the M500 and M590 models with the enhanced combat utility of a military “trench gun.” Shotguns

Mossberg 590A1 Retro Shotgun Review

Leroy Thompson - August 24, 2020

The Mossberg 590A1 Retro offers the proven durability and reliability of the M500 and M590...

In the golden age of daily carry options, the Springfield Armory Hellcat OSP pistol is a helluva deal! Handguns

Springfield Armory Hellcat OSP Review

Patrick Sweeney - August 12, 2020

In the golden age of daily carry options, the Springfield Armory Hellcat OSP pistol is a...

The Wilson Combat-SIG Sauer WCP320 pistol is now legal for IDPA Stock Service Pistol Class Competition and USPSA Production/Carry Optics Classifications. Handguns

WCP320 Pistol Now Legal for IDPA and USPSA

Firearms News Staff - August 14, 2020

The Wilson Combat-SIG Sauer WCP320 pistol is now legal for IDPA Stock Service Pistol Class...

Developed to replace the venerable AK-74, the Blow-Back Shifted Pulse AN-94 Nikonov is a fascinating hyper-burst design which faded away after the death of its designer. Rifles

Russian 5.45x39mm AN-94 Nikonov Review

David M. Fortier - August 14, 2020

Developed to replace the venerable AK-74, the Blow-Back Shifted Pulse AN-94 Nikonov is a...

See More Trending Articles

More Gunsmithing

AGI's new Certified Glocksmith Course includes Complete Disassembly & Reassembly, the GLOCK Gunsmithing

AGI Glocksmith Course

SGN Online Editors - April 09, 2014

AGI's new Certified Glocksmith Course includes Complete Disassembly & Reassembly, the GLOCK

This article will walk you through the process of building a Glock pistol from an 80 percent frame. Gunsmithing

How To Build a Glock From an 80 Percent Frame

Gus Norcross - August 13, 2020

This article will walk you through the process of building a Glock pistol from an 80 percent...

There are two ways to go when purchasing tools: heavy duty professional grade for daily use or Gunsmithing

Industrial Grade AR Tools

Gus Norcross - March 10, 2014

There are two ways to go when purchasing tools: heavy duty professional grade for daily use or

Lone Wolf Distributors are now offering the Advantage Arms .22 Conversion Kit for Glock pistols. Gunsmithing

Lone Wolf Advantage Arms .22 Conversion Kit

SGN Online Editors - April 16, 2014

Lone Wolf Distributors are now offering the Advantage Arms .22 Conversion Kit for Glock...

See More Gunsmithing

GET THE MAGAZINE Subscribe & Save

Digital Now Included!

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW OUR CURRENT ISSUE

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Get Digital Access.

All Firearms News subscribers now have digital access to their magazine content. This means you have the option to read your magazine on most popular phones and tablets.

To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine.

Get Digital Access

Not a Subscriber?
Subscribe Now