Maadi-Griffin kit

Juan Hunt Greer

New member
Just in case anybody is interested: The non-
FFL kit in 50 bmg is very straightforward
in tis instructions and shows excellent
CNC machinework. The 2 cuts remaining to be
done on the receiver are pre-milled about
.030 to give you an exact pattern,Just be sure to follow the instuctions to the letter
on markings, and , of course, you can NEVER
sell, give, or otherwise transfer it.
A beautiful, powerful, gun though, and no 4473 out there! ;-)
crankshaft
 
Juan, I know little about these rifles. Which model did you choose, and why? How do you think these stack up against the other .50 BMG rifles out there? Pros and cons?

Thanks. Regards from AZ
 
Sorry, no pix yet, I haven't got the pretty-
up done or the scope mounted as yet. As for
the other questions, I had a maadi-griffin
once before, but had a sudden cash emergency
about 6 years ago. I was always impressed
by the design philosophy " simpler is better
" The current ones are just as simple, but
have a match-grade barrel. I have also liked
the bull-pup principle. The shell-holder bolt
may be a little slow, but this is not a
rapid fire idea anyway. I chose the 36" bbl
over the 44" because the balance seems a
little better , and the latter seems just a
little too unwieldy. I haven't fired the new
one yet, ( going to a suitable location gets
to be a bit of an expedition from where I
live. I'll keep you all posted.
crankshaft
 
Juan, does the Maadi come already finished, or do you also need to do this yourself?

I e-mailed them and was told that I could take the receiver to a machinist and have him make the cuts, as long as I remained present and "in control of the receiver".

From the diagram on their web site, it looks like the rifle is sent to you largely completed. How involved is the assembly after you get the receiver cuts completed?

I'm very interested. Even if you pay $100 for the machining, that is a great deal on a .50 BMG.
 
Whoa Amigo's!?!

Do you mean to say that a person could finnish a semi-auto reciever- and thereby "make a Gun" for thier own private use with out an FFL as long as it is never transfered or sold? Now that's a "loop hole"
I have not heard of yet.

How many people know bout' this?
 
Answers to questions: the kit arrives " in the white", which is to say, the carbonsteel
barrel is as lathe turned ( very nicely, but
not well enough to do a deep blueing on, tho
more than adequate for parkerizing or camo
paint, etc).The cast aluminum lower is as
cast externally, and quite attractive as is.
The muzzle brake is a stainless steel cast-
ing with a finish similar to the lower.
the remainder of the parts are stainless
steel with a very nice machined finish as is.
The actual assembly can easily be done in
about 1/2 hour, though I STRONGLY recommend
that in the headspacin phase, you practice
at least 1 hour and get it right the first
time, as you will be working with mixed
epoxy in the threads. Make sure that you
have an original hardball round or excellent
equivalent (no AP) to set it up with. Also,
a minor point, once it's together, don't
stand it on the butt end with the recoil
pad in place for more than a few minutes
or the pad slowly gives , and if you leave
it that way over night, it never does come
back all the way. As to the question from
Izzy, I don't know whether the upcoming
semi version will be " kittable " The
receiver may be considerably more complicated
and impractical to this. Whoops!, almost
forgot one other assembly hint- the last
thing to go on is th muzzle brake because
the headspacing is done through barrel rot-
ation, you will almost certainly end up with
the brake stopping at an odd point in its
rotation. I made a copper washer and lapped it to appropriate thickness, But in retro-
spect, a series of washers cut from aluminum
can stock would work as well and be a heck
of a lot easier. Bob Stewart at Maadi-
Griffin is very good about answering
questions and when in doubt, ask someone
first! The booklet that comes with it is
VERY good, however, and the only time I
had to ask anything was in headspacing,
because I had one ball and two AP's and
didn't realize that the AP's had a longer
ogive. Boy, I got long winded today!
crankshaft
 
it is indeed legal for the civilian to "manufacture" an non registered weapon

Over on
AR15.com in the build it yourself forum a
bunch of guys are finishing 80% AR lowers

dZ
 
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