View Full Version : Finished HK51 Clone
02-16-2006, 03:02 PM
Built using an ORF surplus parts kit on a Stamped Century CETME Receiver, papered as a pistol. Cost $550 including the retractable stock ($140 Centerfire - for when the LEGAL registered sear pack is installed) Made a pistol butt-plate using 1/4" steel on back of the cap for use as a legal pistol when the sear pack is out. Barrel turned to 8.75"
Here's a pic of my home-made clone with the REAL Vollmer
Before anyone gets their panties in a bunch, the pins on the lower are fake; it's clipped and law-abiding
The HOOPS we have to jump through -
Flame is as long as she is tall......
It's a "warped still shot" taken from a froze video
Was my first HK type build and easier than I would have thought, though I had some helpful coaching. Paddle Mag release was the trickiest part (6+ hrs using a dremmel), converting the surplus G4 pack to semi was a breeze. Works 100% with original locking piece firing Wolf Ammo
Shooting cheap Indian Surplus (yes I know) requires the #18 locking piece for the reduced pressure, and also runs 100%. So if I stick with Wolf, I can use the locking piece in the up-coming 51K build. At least that's the plan....
Steve in El Paso
Very cool, 51 is one of my favorite HKs. I'm gonna have to look into this one.:thumbup1:
02-16-2006, 03:49 PM
Did you use a 51 kit, or a 91/G3 kit? Who still sells receivers for these?
02-16-2006, 05:08 PM
That is cool.
02-16-2006, 05:23 PM
Thanks for the positive comments Gentlemen. You can tell I'm pretty excited about it.
Tony, as far as I know, 51's must be cut down from a G3 kit. And I've been looking for another stamped receiver, but no one has them in stock right now, that I know of. That CETME receiver only cost me $99 (Military Gun Supply) but they're out. JLD makes a nicer one, and they'll supposedly be available from POF again in about a month.
If anyone has more info on a receiver source, I sure would appreciate an update - I'd prefer another cheap stamped CETME.
Not to insult your intellegence, but you know to register the receiver as a pistol; if you put a stock on it w/o registering it as a SBR you could get yourself in trouble. I think you folks already know all that. Using a registered sear legally circumvents it. Now you know why I want another CHEAP receiver - spent all my $$$ on the sear pack!
Did you cut the barrel and tube down or was it like that when you got it? If it's just a matter of cutting and moving the sight block and tube cover, and having the barrel turned this could be just what I'm looking for. I had an hk-91 but sold it when I got married. This would be more fun. I know a guy who would help me on this too. Yeah, I'm familiar with the SBR route, but don't have enough $ for a registered sear pack:angry: . I'll have to pick your brain on this some more if you don't mind.:thumbup1: By the way, is inter ord.,the only people who have parts kits now?
02-16-2006, 06:37 PM
I cut/turned the barrel down, disected the old cocking tube from the cut receiver section, then shortened it. Welded the trunnion and shortened-cocking-tube into the new receiver.
My triple-tower is butted SOLID against the cocking-piece-stop WELD (Important! THIS is what determined exact triple-tower placement) It's not like the "real" tubes, which FLOAT in the triple-tower, but it works, and is solid at both ends. I will try to post a close-up pic of it when I get home. On layover right now.
Here's the basics on a build http://www.smcomp.com/~smurph/G3-build.html
IO is listing G3 parts kits for sale in their flyers, for around $250.
Mags are cheap right now - 50 for $50 from TAPCO that's part of the reason I launched into all this 91/51 stuff. Fella can go broke just stocking up on mags, depending on firearm & caliber.
Good Luck and keep us posted
02-16-2006, 06:40 PM
I got a V53 pistol from Vector, it is a really fun gun to shoot, yours should be really something in fa.
02-18-2006, 05:13 AM
Thanks Old Coot -
Which implies you probably forgot most of everything I will ever know.....BUT I'M WORKING ON IT!!!!!!
Honestly it's been a really fun (sometimes frustrating -that's where the fun comes in) build!!!!
02-18-2006, 10:03 AM
nice work!!!!!!!!! :D
02-22-2006, 09:56 AM
04-01-2006, 01:53 AM
Well after the "K" got done, I broke it out, and this thing looks ugly with that cocking handle sticking out front of the triple-tower. I have a new in-the-white tube, and she's gonna get a make-over. The way it SHOULD be done. Well, ya gotta start somewhere.
Vulcan are you still contemplating or what??? Maybe you didn't like that cocking handle protrusion to begin with......
"K" is on the way to my friend in OH to get a new black-oxide tux :) then a virgin-break-in at KCR next weekend. Hope someone there has a sear 'cause I didn't submit interstate-travel paperwork for mine.
04-01-2006, 02:58 AM
51's are awesome.
04-05-2006, 04:26 PM
I re-did the cocking tube so the cocking handle is where it SHOULD be, instead of hanging out the front end. The re-build was a bit more complex, involving shortening the BC & RSG, and lengthening the cocking piece. Cyclic rate is higher due to the lighter bolt carrier. Am taking another .75" off the barrel; that will make it 8"
Just received a few 30 round mags - if the muzzle looks like it was freshly annealed, well I guess it was. Moral of the story: if you buy 30's, don't run them all at once. Started to melt the handguard (now I know why the 'deluxe' builds have hangers for the pin) Guess it was an appetizer for KCR.
You've seen me in the video - if you're at Knob Creek, introduce yourself. I'll be wearing a TAPCO cap. It would be good to meet other builders from here
Steve in TX
04-05-2006, 06:40 PM
I so want one of these!! I have a second HK91 receiver that I was going to build a collapsable stock g3 on now I'm going to make this bad boy.
02-04-2008, 01:54 PM
Great thread worth a bump considering the availability of the flats!
02-04-2008, 01:56 PM
When using a Cetme, the cocking piece and the carrier are slightly different. ANy ideas?
02-04-2008, 04:42 PM
How available are the registered sear packs, and how much?
Hey! I can dream :)
02-04-2008, 04:50 PM
I haven't even studied my parts kit yet - working intensely on other projects right now - this may take awhile (few months)
Go to Sturmgewehr.com and shop. Averaging around $13K right now
02-06-2008, 11:20 AM
[Video was deleted from putfile.] working now for some reason. Could you repost to youtube? or e-mail it to me and I can post it for you.
02-06-2008, 01:11 PM
I reloaded the video.
Sometimes videos are pulled, due to "Violent and disturbing content"
Shooting plastic milk jugs in the desert is considered a 'violent' pastime to some people. I would like to take whoever who flags these videos, out shooting, with the emphasis on saftey and having an enjoyable memorable time
People fear what they don't understand, whether it be shooting, flying, boating etc
02-06-2008, 01:32 PM
Here is pics of my start on the pistol. #1 and #3 are the items I thought could be replaced with HK parts. You can see the insert on #2 also. The larger diameter section of the #2 part is what I was asking about. #4 is the barrel section a friend gave me for the build. It appears to be SS, but not sure. Does anyone make a 51 cocking tube?
02-06-2008, 01:50 PM
I believe that would work - be sure to check your recoil spring guide & 'inside sleeve', to make sure it will mate with eveything
You can stack sections of that sleeve to get the length right - remember to cut a little notch in the very front of the sleeve so you can punch it out later / a lip to get the punch on (like a rook chess piece). Wire-wheel it clean and it'll come out easier. Spring tension will hold it in just fine
Regarding a '51 cocking tube, I believe the best (easiest) way is just cut a regular one down, then insert the 'plug' in the front, and re-weld. Grind a bevel on that weld, and fit it TIGHT against the triple-tower; pin it
There are two schools of thought to all this, one being 'correct' which is exactly like HK WOULD have built (like a Vollmer) or a get-it-done-to-shoot version which is just as strong and a heck of alot easier. On the 'correct' version, the factory cocking slot ends where it should, and the front of the tube is free-floating, with a hangar for the HG pin. On mine, the PLUG IS the front end of the cocking slot; hangar can be added so you don't melt your grip
Hope that all made sense
02-06-2008, 04:57 PM
How did you do the back end where the turned up slot used to be? Being that the new slot is farthur back. What did you use for a handguard hanger up front?