AK reciever bending jig? - Pirate4x4.Com : 4x4 and Off-Road Forum

4x401cj · 07-27-2007, 08:04 PM

I`m going to buy one. I like the model DPH builds and it`s reasonable at $150. Has anyone seen any others worth considering? I`d like to spend no more than $200.

TheRedHorseman · 07-27-2007, 08:14 PM

I've got a DPH, it works fine. Upper rails are a bit of an art since you hammer them over instead of having a dedicated jig, but you get used to it.

4x401cj · 07-27-2007, 08:20 PM

How did you heat treat?

TheRedHorseman · 07-27-2007, 08:43 PM

At first using a MAPP gas plumbers torch and quenching them in the sink of my apartment. Now I use a home depot 5 gallon bucket and an oxy/acet torch.

Holocene · 07-28-2007, 08:00 AM

Do you just have to bend the reciever flats, or is there other drilling and stuff you have to do before you have a complete reciever?

TheRedHorseman · 07-28-2007, 08:07 AM

They are a pain, at least the Tapco ones are, the AKBuilder ones are probably a lot better.

1. Make the bottom bend in the jig
2. flip the die over in the jig, use a hammer to get the bottom of the receiver fairly flat and sharpen up the bends.
3. Flip it again, hammer the upper rails over, hammer them some more, then use a piece of scrap steel to smooth them out.
4. weld the lower rails in.
5. install center support and rivet
6. adjust the holes to fit the kit
7. heat treat the receiver and ejector
8. rivet the receiver to the kit
9. use paint, marker, or dye to mark the rails and figure out where it's binding up the bolt and carrier, use files or a rotary tool to remedy this.

Then you have a receiver. It's nowhere near as easy as a good premade receiver.

Holocene · 07-28-2007, 08:15 AM

Damn, that's a lot of work. It is attractive though that you can have a flat shipped right to your door and not have to dick around with FFL's.

Red Dwarf · 07-28-2007, 03:04 PM

Quote:

Originally Posted by 4x401cj

I`m going to buy one. I like the model DPH builds and it`s reasonable at $150. Has anyone seen any others worth considering? I`d like to spend no more than $200.

You could look at the Poor Man's Jig on Gunco.net. Couple of pieces of angle iron and some bolts. Most everyone that's used it says it works. YMMV. I've also seen it posted on AKforum and AR15.com in the BIY forums.

usmcdoc14 · 07-28-2007, 04:02 PM

Quote:

Originally Posted by 4x401cj

How did you heat treat?

heat with a oxy torch till a magnet will not stick and then quench in a metal "mud pan/wall paper glue pan" filled with used motor oil.

Then I stick it in a pan and burry/fill it with clean sand and bake at 350* for an hour and turn off the oven till cool to anneal it.

aloharover · 07-28-2007, 04:12 PM

I made my own jig. Details are in the AK DIY thread. Basically a piece of 2/3"x2"x12". two 1/4"x2"x12". Used the blueprints found online and a sawzall to cut to shape. Finished with a long flat file and a belt sander. The female part of the jig is some 1/4x2x2 angle welded together.

4x401cj · 07-28-2007, 04:30 PM

Just got back from the gunshow. I thought I might find an AK reciever fairly cheap, I was wrong. They started at $110 and went up. The DPH jig I wanted isn`t available now for some reason, according to their website.

I don`t know what to do now.

indulf · 07-30-2007, 10:07 AM

Quote:

Originally Posted by 4x401cj

I don`t know what to do now.

duh, make your own like plenty of others have mentioned on the site. plans are out there.

Keith Armstrong · 08-02-2007, 10:21 AM

Quote:

Originally Posted by usmcdoc14

heat with a oxy torch till a magnet will not stick and then quench in a metal "mud pan/wall paper glue pan" filled with used motor oil.

Then I stick it in a pan and burry/fill it with clean sand and bake at 350* for an hour and turn off the oven till cool to anneal it.

Oh man! That's the most fun I've had all Summer!

Sad, I know, but I really enjoyed filling the garage with smoke for a little while there.

SWMBO couldn't figure out why I smelled like exhaust when nothing had been running

07-27-2007, 08:04 PM	#1 (permalink)
4x401cj Registered User Join Date: Oct 2004 Member # 37244 Location: Gresham, Oregon Posts: 1,021	AK reciever bending jig? I`m going to buy one. I like the model DPH builds and it`s reasonable at $150. Has anyone seen any others worth considering? I`d like to spend no more than $200.

07-28-2007, 04:12 PM	#10 (permalink)
aloharover lets go Squatchen Join Date: Oct 2002 Member # 14561 Posts: 15,928	I made my own jig. Details are in the AK DIY thread. Basically a piece of 2/3"x2"x12". two 1/4"x2"x12". Used the blueprints found online and a sawzall to cut to shape. Finished with a long flat file and a belt sander. The female part of the jig is some 1/4x2x2 angle welded together. __________________ Want to know how I lost 25lbs in 9 weeks? Try INSANITY®. www.beachbodycoach.com/petermhope I love it when a plan comes together Colorado Springs, CO Based FFL-07/SOT

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07-27-2007, 08:14 PM	#2 (permalink)
TheRedHorseman Registered User Join Date: Dec 2005 Member # 64421 Location: Flagstaff, AZ Posts: 8,192	I've got a DPH, it works fine. Upper rails are a bit of an art since you hammer them over instead of having a dedicated jig, but you get used to it.

07-27-2007, 08:20 PM	#3 (permalink)
4x401cj Registered User Join Date: Oct 2004 Member # 37244 Location: Gresham, Oregon Posts: 1,021	How did you heat treat?

07-27-2007, 08:43 PM	#4 (permalink)
TheRedHorseman Registered User Join Date: Dec 2005 Member # 64421 Location: Flagstaff, AZ Posts: 8,192	At first using a MAPP gas plumbers torch and quenching them in the sink of my apartment. Now I use a home depot 5 gallon bucket and an oxy/acet torch.

07-28-2007, 08:00 AM	#5 (permalink)
Holocene Registered User Join Date: Jul 2006 Member # 75208 Posts: 203	Do you just have to bend the reciever flats, or is there other drilling and stuff you have to do before you have a complete reciever?

07-28-2007, 08:07 AM	#6 (permalink)
TheRedHorseman Registered User Join Date: Dec 2005 Member # 64421 Location: Flagstaff, AZ Posts: 8,192	They are a pain, at least the Tapco ones are, the AKBuilder ones are probably a lot better. 1. Make the bottom bend in the jig 2. flip the die over in the jig, use a hammer to get the bottom of the receiver fairly flat and sharpen up the bends. 3. Flip it again, hammer the upper rails over, hammer them some more, then use a piece of scrap steel to smooth them out. 4. weld the lower rails in. 5. install center support and rivet 6. adjust the holes to fit the kit 7. heat treat the receiver and ejector 8. rivet the receiver to the kit 9. use paint, marker, or dye to mark the rails and figure out where it's binding up the bolt and carrier, use files or a rotary tool to remedy this. Then you have a receiver. It's nowhere near as easy as a good premade receiver.

07-28-2007, 08:15 AM	#7 (permalink)
Holocene Registered User Join Date: Jul 2006 Member # 75208 Posts: 203	Damn, that's a lot of work. It is attractive though that you can have a flat shipped right to your door and not have to dick around with FFL's.

07-28-2007, 04:30 PM	#11 (permalink)
4x401cj Registered User Join Date: Oct 2004 Member # 37244 Location: Gresham, Oregon Posts: 1,021	Just got back from the gunshow. I thought I might find an AK reciever fairly cheap, I was wrong. They started at $110 and went up. The DPH jig I wanted isn`t available now for some reason, according to their website. I don`t know what to do now.