Skip to main content

Building a Hybrid Yugoslav M70B1 from a Stub Parts Kit

Part 8 Summary Parts List

Building a Hybrid Yugoslav M70B1 - Part 8 Summary Parts List

So at this point, you may be wondering what parts you need. The following is a list based on making a fixed stock M70B1 in a manner described in this article:

* Barrel assembly - including the barrel, handguard retainer, front sight block, gas block and rear sight block (RSB). Each block on a M70 is a subassembly and should have its various parts. For example, the RSB should include the left sight and its spring plus the lever and cam to lock the gas tube in place.

* A front receiver stub will be used to make a front trunnion. There are four reasons for doing this. First, the Yugo Rear Sight Block is thicker than a normal AKM and would require an AKM trunnion's "ears" to be shaved very thin to accommodate it. Second, the Yugo front lower handguard has a small tab that fits ideally into the front of the milled receiver that will become our trunnion. Third, it is hard to find a Yugo M70B1 front trunnion and a lot easier to just make one. Last but not least, grinding down the M70 receiver to a "slab side" trunnion vs. a bulged Yugo trunnion allows the use of standard AKM receivers vs. specialized Yugo receivers. This last part matters to me at least because as my flat bending jig cannot bend bulged Yugo flats.

* A barrel pin--may need to be replaced with an oversized one when headspaced.


* The gas tube


* The upper and lower front handguards and the lower one needs its metal ferule

* A slant brake or whatever muzzle device you want, such as a muzzle nut.

* A flat-sided receiver without trunnion holes - you will drill them later. You do want the fire control group, center support and safety lever holes there. If you build one, you'­ll need to plan on a center support and lower rails as well.

* Four 10-32x1/4" long button head alloy machine screws for the front trunnion




* Two 1/4-28x1/4" long button head alloy machine screws for the front trunnion

* Four 1/4-28x1/2" long button head alloy machine screws for the rear trunnion

* Five 5/32x1/4" dome head rivets for the trigger guard assembly


* One AK fire control group - hammer, trigger and disconnector (be sure to get the set that is recommended for your model of receiver just to be safe. For example, there is a NDS receiver model that has compatibility problems with the Tapco G2 trigger but that can be corrected by following instructions at the NDS website https://www.nodakspud.com/troubleshooting.htm)

* Two standard AKM fire control group axis pins

* One Romanian or other sheetmetal selector lever

* One fire control group retaining spring or plate

* One trigger guard assembly including the magazine latch and selector lever stop plate that goes underneath it

* One rear trunnion - either Yugo or an AKM pattern (if you plan on using an AKM buttstock and not a Yugo)

* Recoil spring and operating rod assembly

* Spring set - disconnector, recoil (same spring that is part of the previous bullet), extractor and hammer

* Bolt carrier and gas piston

* Bolt assembly including the extractor, spring, firing pin and retaining pins

* Top/dust cover

* Pistol grip bolt and nut from any AKM

* Pistol grip of your choice (Yugo pattern, Ergo, standard AK, etc.). I used a US-made M70 grip from Ronin's Grips (www.roninsgrips.com)

* Buttstock

* Buttstock bolt

* Buttstock rubber butt pad

* Cleaning rod

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

Recommended Articles

See More Recommendations

Popular Videos

Citadel Boss 25 Magazine Adapter

Citadel Boss 25 Magazine Adapter

Will Dabbs gives a rundown on how to limit the magazine capacity in your Citadel Boss 25 to stay in compliance with hunting laws.

Gemtech Suppressors: Testing the Patrolman, the One and the Tracker

Gemtech Suppressors: Testing the Patrolman, the One and the Tracker

Patrick Sweeney tests and reviews a trio of Gemtech suppressors.

Leupold Freedom RDS

Leupold Freedom RDS

Patrick Sweeney reviews the Leupold Freedom RDS optic with bullet drop compensator!

Springfield Hellcat OSP Review

Springfield Hellcat OSP Review

Patrick Sweeney takes the Springfield Hellcat OSP to the range to test it out!

See More Popular Videos

Trending Articles

The Masada is IWI's first striker-fired pistol and is an accurate, good looking polymer handgun that has a great trigger.IWI Masada Pistol Review Handguns

IWI Masada Pistol Review

Bob Taubert - August 19, 2020

The Masada is IWI's first striker-fired pistol and is an accurate, good looking polymer...

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.” Mossberg 590A1 Retro Shotgun Review 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...

Governor Mike DeWine's STRONG Ohio anti-gun bill is facing strong, unified opposition.Opposition to 'STRONG Ohio' Remains Strong 2nd Amendment

Opposition to 'STRONG Ohio' Remains Strong

Buckeye Firearms Association - August 24, 2020

Governor Mike DeWine's STRONG Ohio anti-gun bill is facing strong, unified opposition.

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

See More Trending Articles

More Gunsmithing

As someone accustomed to AR-15, M14 and M1 rifles, I can't say I'm a huge fan of the AK-47, but IKrebs Enhanced AK Safety Gunsmithing

Krebs Enhanced AK Safety

Gus Norcross - May 07, 2014

As someone accustomed to AR-15, M14 and M1 rifles, I can't say I'm a huge fan of the AK-47,...

There was a time (a couple decades ago) when most 1911 front sights were staked in place as JohnHow to Stake a Trijicon 1911 Front Sight Gunsmithing

How to Stake a Trijicon 1911 Front Sight

Gus Norcross - May 29, 2014

There was a time (a couple decades ago) when most 1911 front sights were staked in place as...

AGI's Certified AR-15/M4 Riflesmith Course includes DVDs with Complete Disassembly and Reassembly,AGI AR15/M4 Riflesmith Course 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...

Cerakoting of firearms has become hugely popular, more so for decoration than protection, although the finish does both.Cerakote - The Hottest Finish in Firearms Gunsmithing

Cerakote - The Hottest Finish in Firearms

James Tarr - February 14, 2019

Cerakoting of firearms has become hugely popular, more so for decoration than protection,...

See More Gunsmithing

Magazine Cover

GET THE MAGAZINE Subscribe & Save

Digital Now Included!

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW OUR CURRENT ISSUE Arrow

Buy Digital Single Issues

Don't miss an issue.
Buy single digital issue for your phone or tablet.

Buy Single Digital Issue on the Firearms News App

Other Magazines

Special Interest Magazines

See All Special Interest Magazines

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

Phone Icon

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