Building a Hybrid Yugoslavian M70B1 from a Stub with Screws

Building a Hybrid Yugoslavian M70B1 from a Stub with Screws

Part 1

The AK family of rifles is quite diverse. Builders and collectors of these rifles are always noting differences between models and, as a while, the Yugoslavian AKs are pretty unique. I've been a hobby builder since 2006 and find the design differences fascinating. A bit over a year ago, I approached Bob Hunnicutt, the editor of SGN, with an idea for a piece on building an AK based on milled Yugo receiver parts but with a sheetmetal receiver. Times and opportunities change and opened the door to create a series of articles for the SGN website and this will be the first of many that lay out the background, parts and methods.


In the 1950s, the Yugoslavian arms manufacturer Zavpodi Crvena Zastava reviewed the Russian Avtomat Kalashnikova (AK) and realized its vast potential. In the 1964 they started manufacturing the M64 under license but with a number of modifications that make the Yugo family of AKs unique, notably its capability to launch grenades, bolt hold-open device, flip-up night sight, recoil spring lock, rubber recoil pad on the fixed stock model and one of the best AK grip designs in terms of ergonomics. Like any design, it evolved over time.


When they created the M70, they retained the forged receiver and made some updates, including the design of the receiver and attaching the rear stock with a single 8mm bolt that traversed the length of the stock, ending under the rubber butt pad. The M70A was the underfolder stock model while the M70 designation referred to the forged receiver fixed stock model.

The M70B1 denotes the move to the less costly to manufacture 1.5mm thick stamped sheet metal receiver, which Russia had already done. The M70AB2 refers to a stamped underfolder version. In this article, we will build our own version of a M70B1. It's not as heavy duty as the bulged side genuine M70B1s but it's no slouch either — especially given we will not be launching rifle grenades!

Despite the unique design differences, Yugo rifles are undeniably based on the AK design and are both interesting rifles to build as well excellent rifles to fire. In this article we will review how to build a version of a M70B1 in a cost-effective manner by leveraging the front stub of a milled M70, thus getting around sourcing issues as some parts are becoming increasingly expensive to find and, thus, expensive.

The reader needs to bear in mind that most rifles can be bought assembled for less than what it costs to build a single rifle. Indeed, there are complete AK-type rifles for sale right now for well under $400. Building a rifle is more about better understanding the design and the reward of building something yourself as opposed to cost savings. The intent of the article series is to give you "food for thought" that you can then change however you see fit.


Over the course of following weeks we will review the build and considerations for part selection, fabrication, assembly, and the final finish.

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

Recommended Articles

See More Recommendations

Popular Videos

Firearms News Takes a Look at the Aero Precision 7.5-Inch AR Pistol Upper In 5.56

Firearms News Takes a Look at the Aero Precision 7.5-Inch AR Pistol Upper In 5.56

Vincent DeNiro, editor of Firearms News, does some shooting with the Aero Precision Atlas S-One 7.5-Inch AR pistol upper in 5.56.

SCCY CPX-4 in .380 ACP

SCCY CPX-4 in .380 ACP

New for 2019 is the SCCY CPX-4, a .380 ACP semi-automatic pistol that extends beyond the existing SCCY CPX-3 line of pistols.

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.

See More Popular Videos

Trending Articles

No one can restore receptivity to another Trump term with these disaffected gun owners but the president himself. 2nd Amendment

2020 is Trump's to Blow with Gun Owners

David Codrea - July 09, 2019

No one can restore receptivity to another Trump term with these disaffected gun owners but the...

A $50 Ring Loc-Kit gives AirForce Condor airgunners unparalleled power and accuracy. Air Guns

AirForce Airguns Condor Ring-Loc Kit Review

Tom Gaylord - May 29, 2019

A $50 Ring Loc-Kit gives AirForce Condor airgunners unparalleled power and accuracy.

Rhode Islanders are setting brushfires for freedom once again as they advance a Second Amendment Sanctuary Town movement. 2nd Amendment

SPECIAL REPORT: BIG 2A HISTORY BEING MADE IN LITTLE RHODE ISLAND

John Peterson - May 22, 2019

Rhode Islanders are setting brushfires for freedom once again as they advance a Second...

CRKT makes 17 different knife models exclusively for Ruger, from fixed hunting knives to tactical folders, and many of their models are offered in several different styles. Accessories

Ruger CRKT Knives Review

James Tarr - July 08, 2019

CRKT makes 17 different knife models exclusively for Ruger, from fixed hunting knives to...

See More Trending Articles

More Gunsmithing

YouTuber, GunCraft101, builds an AR-10 from used brass casings. Gunsmithing

YouTuber Builds AR-10 Receiver from Used Brass Cartridge Cases

Jim Grant - July 06, 2018

YouTuber, GunCraft101, builds an AR-10 from used brass casings.

In Part 2 we left off with our gas system installed, ready to screw on the fore-end tube. Most AR Gunsmithing

Building a Heavy AR-15 Varmint Upper Part 3: Final Assembly & Test Fire

Gus Norcross - January 27, 2014

In Part 2 we left off with our gas system installed, ready to screw on the fore-end tube. Most...

This fully adjustable stock and comb for AR-15/M16/AR-Style .308 rifles readily adapts length of Gunsmithing

Brownells AR-15/M16/AR308 PRS Buttstock Kit

SGN Online Editors - September 15, 2014

This fully adjustable stock and comb for AR-15/M16/AR-Style .308 rifles readily adapts length...

AGI's Certified AR-15/M4 Riflesmith Course includes DVDs with Complete Disassembly and Reassembly, Gunsmithing

AGI AR15/M4 Riflesmith Course

SGN Online Editors - July 06, 2014

AGI's Certified AR-15/M4 Riflesmith Course includes DVDs with Complete Disassembly and...

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