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Olav
05-02-08, 16:56
http://i218.photobucket.com/albums/cc212/olava1/ar15/IMG_0632.jpg

First post too...
MontanaLongbow
05-02-08, 18:10
That's cool Olav, Tell us about it.
Olav
05-02-08, 18:20
Well lets see...

I put an Armalite lpk in the Noveske lower along with a Timney 4lb skeletonized fire control group. Having done that I attached a Mapgul trigger guard to open up the area.

For a grip I slapped on the ever popular Hogue grip but I have something else in mind and will put it on when it arrives in the mail.

I decided to go with a LR300 NXL upper with YHM folding BUIS. I'll get some glass a little later on. I'm also running a Y Comp for three gun matches and stuff.

I put on a skeletonize buttstock and a uno point sling both from ZM Weapons.

I think it turned out pretty well and pretty happy with it.
recon by fire
05-03-08, 02:01
Nice rifle. Where is the buffer spring?
ARin
05-03-08, 03:02
its a ZM from YHM. they dont have buffers. They are a piston gun with a very Daewoo-like half-carrier system. The spring would be captured on the op rod....IIRC.
Olav
05-03-08, 09:03
its a ZM from YHM. they dont have buffers. They are a piston gun with a very Daewoo-like half-carrier system. The spring would be captured on the op rod....IIRC.

FYI, It's not gas piston, it's regular old DI.

The bolt carrier is the same in principal but a lot lighter while still retaining the the forward assist gills.

;)
Olav
05-03-08, 09:06
Nice rifle. Where is the buffer spring?


The spring sits on top of the barrel over the gas tube...

http://i218.photobucket.com/albums/cc212/olava1/ar15/LR300_Gas2.jpg


http://i218.photobucket.com/albums/cc212/olava1/ar15/LR300_Gas1.jpg
five13
05-05-08, 10:34
Interesting design, Olav thanks for the pics.
Olav
05-05-08, 10:36
Interesting design, Olav thanks for the pics.

No problem, I'll post a few more to show the details.
ARin
05-05-08, 14:01
Im sorry, i guess i was mistaken......

if not a piston design, then what is the benefit? different for the sake of being different?
12131
05-05-08, 14:24
Im sorry, i guess i was mistaken......

if not a piston design, then what is the benefit? different for the sake of being different?
I guess for one thing, you can have it in folding stock.
12131
05-05-08, 14:27
Side note: any guess as to why the ZM weapons never really caught on?
Olav
05-05-08, 14:49
Im sorry, i guess i was mistaken......

if not a piston design, then what is the benefit? different for the sake of being different?

Lighter
Cleaner operation
Folding butt stock
less recoil
compact design
less parts
a damaged/bent butt stalk doesn't render the weapon nonoperational.
Olav
05-05-08, 14:55
Side note: any guess as to why the ZM weapons never really caught on?

Not much Marketing behind them.
ARin
05-05-08, 15:00
i handled these at SHOT.

they didn't feel lighter. They definitely weren't more compact (maybe they would be if folded, but you don't have a folder), especially with the taller upper receiver..

haven't heard too many issues with bent or damaged stocks.

Less parts might be true...but harder to find specialty parts.

whatever the case, neat rifle, thanks for showing us.
Take some pics of the gas system/bolt out of the weapon please. thanks
Olav
05-05-08, 15:19
i handled these at SHOT.

they didn't feel lighter. They definitely weren't more compact (maybe they would be if folded, but you don't have a folder), especially with the taller upper receiver..

haven't heard too many issues with bent or damaged stocks.

Less parts might be true...but harder to find specialty parts.

whatever the case, neat rifle, thanks for showing us.
Take some pics of the gas system/bolt out of the weapon please. thanks

They are lighter, I don't know the config you held was. With the telescopic/folder that comes with the LR is about 7.4 but you can go down from there.

I don't have a folder because of silly laws. That's the compact part of the equation.

Taller upper receiver by about 2mm nothing unusual.

Just saying, bend your return spring tube and the weapon won't work.

Just order parts from the manufacturer like any other product. Same argument for the Bushmaster ACR I guess or any non-issued weapon

Sounds like your jealous ;)

Yah, I'll post some photos asp.
b_saan
05-05-08, 15:45
Do they make it in a shorter config? Looks like a neat system for an AR pistol...
Olav
05-05-08, 17:06
Do they make it in a shorter config? Looks like a neat system for an AR pistol...

That's what the LR300 evolved from.

Originally, Alan Zitta, created a AR pistol called the "Master Blaster" for competion...
Olav
05-05-08, 19:01
Here is the LR300 Bolt Carrier Group (BCG) and the extended bolt key tube, the return spring and the 1/2 moon clip. Basically, all the new parts:

http://i218.photobucket.com/albums/cc212/olava1/ar15/IMG_0636.jpg


Close up of the BCG. Note Bolt Carrier is about 1/2 the size of standard Bolt Carrier

http://i218.photobucket.com/albums/cc212/olava1/ar15/IMG_0644.jpg

Close up of gas tube. Notice it is half the length or so of a standard gas tube.

http://i218.photobucket.com/albums/cc212/olava1/ar15/IMG_0641.jpg

This shows the spring over the extended key tube which in turn fits over the gas tube shown on top in the upper.

http://i218.photobucket.com/albums/cc212/olava1/ar15/IMG_0647.jpg


Here is the return spring over the extended bolt key tube:

http://i218.photobucket.com/albums/cc212/olava1/ar15/IMG_0645.jpg


That's it!

This system keeps the rifle's receiver and BCG a lot cleaner and runs a lot cooler as a result.

.