Post It Note Trick for Locating Front Trunnion Holes On An AK Receiver

Back before I had the AK-Builder trunnion drilling jig, I needed a quick and easy way to locate where to drill the holes for the front trunnion.  A fellow showed me the PostIt note method and boy was it simple and it worked.

The front trunnion is drilled for the rivets from the first kit so those holes need to be located and drilled on the receiver.

Simply take a standard PostIt Note, stick it to the side of the clean receiver and then rub a dirty finger or pencil lead over the PostIt to see the outlines of the holes appear.  By the way, if the trunnion and receiver are clean, your Post-It adhesive will hold the note in place, which is what you want.

So line the PostIt note up on the receiver’s top and right edges.

Center punch the holes.  I like using an automated punch so I have less to juggle.

You then have your holes to locate your drill.

Use a hole finder to be more accurate and/or start with a small bit and work your way up in case you need to move a little bit one way or the other.

That’s it.  Easy as pie and pretty fool proof.  Lessons learned for me was to clean the parts to protect the adhesive, make sure the edges are aligned and then that nothing moves when you punch each hole.  You do one Post-It note for each side and you can write the trunnion serial number on it and safe the Post-It for future reference.

 


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Build Your Own AK (Vol. I): Headspacing & Virgin Barrel Population (Kindle Edition)

Got an AK Parts Kit? This ebook shows you how to build it right!

The AK-47 and its variants are world-renowned for being simple, rugged and nearly indestructible. But if you wanted to build your own Kalashnikov rifle there was no good single source of construction information—until now.

This new ebook series dives deep into proven techniques of home-built AKs. Profusely illustrated with numerous photos and diagrams, these manuals will show you exactly how to assemble your AK parts kit step-by-step. Your build will go easy using our techniques, recommended tools, and veteran builder tips/tricks…all with a critical focus on both safety & quality.

Volume I covers both headspacing procedures and the population of the barrel components in a non-original barrel or virgin barrel AK parts kit. Both AK-47 and Ak-74 build procedures are described in the first book.
Topics include:
– Measuring the barrel journals
– Cut extractor relief on chamber end of the barrel
– Cut the clocking notches for the lower hand guard retainer
– Strip bolt, in preparation for headspace check
– Align, and press front trunnion onto chamber end of barrel
– Headspacing
– End mill/ream barrel pin notch, and set barrel pin
– Install, and drill/pin Rear Sight Base
– Locate, and cut lower handguard retaining notch
– Gas Port location
– Install Lower Handguard Retainer
– Install, and align the gas block
– Drill and pin the gas block
– Install, and align the Front Sight Base
If you have been waiting for the ‘definitive AK assembly guide’ before building your AK, wait no more.
Volume II (coming this Fall) will continue the journey, showing every step to complete your Matching or Newly populated AK parts kit into a complete rifle.


By (author):  Guy Montag, Nicoroshi

List Price: Price Not Listed
Kindle Edition: Check Amazon for Pricing Digital Only
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