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jlo82585
July 22, 2017, 14:26
Hey guys so I ended up buying a l1a1 Cai fal today (I know not the best option but dammit im impatient). I'm looking for info on the serial numbers.
Under the rear sight on the right side it has AD6118197 and from what I have read that means it's an Australian made in 1961. What do the rest of the numbers mean in that sn?

On the mag well under the carry handle it has 122217 any ideas what this means?

The exposed part of the bolt had a UBA131352, any info on this?

The charging handle and the top of the bolt carrier are the same and it's 960-2302-B60. Any ideas on this one?

Finally on the left side under the rear sight it has a star looking emblem and the number 5 under it, any info on this?

I am assuming this is a Frankenstein mix of parts on this gun and that's fine. I'm also assuming the rifle is in inch pattern. What parts are universal and what parts are inch specific?

Thanks for your time and help!

pistolero1911
July 22, 2017, 14:37
Welcome to the tribe, you will shortly become an addict, if not one already. :)

Sounds like an Aussie lower, with a Brit bolt. What does your upper receiver say on the right side? Any proof marks on the barrel?

Assembler is Century-CAI.

Pics are always welcome.

jlo82585
July 22, 2017, 14:53
If I figure out how to do pics I will post some,

The only numbers on the upper are the 122217 on the outside of the mag well on the right side. The only tings on the barrel is a number 3 on the underside and either a L or a T stamped on the bottom of the barrel. The front gas block has the number 960-2266-B59

tdb59
July 22, 2017, 15:07
The serial sounds like Imbel. Excellent receiver.



..............

jlo82585
July 22, 2017, 15:51
here she is
<a href="https://ibb.co/nvEK5Q"><img src="https://preview.ibb.co/f6HHs5/20170722_154148_1.jpg" alt="20170722 154148 1" border="0" /></a>

and yes im stupid, its an IMBEL
<a href="https://ibb.co/dicQC5"><img src="https://preview.ibb.co/dUvCs5/20170722_153907.jpg" alt="20170722 153907" border="0" /></a>

any idea on this S/N?
<a href="https://ibb.co/iWc3zk"><img src="https://preview.ibb.co/d6YbKk/20170722_153956.jpg" alt="20170722 153956" border="0" /></a>

im assuming its an inch pattern in which case ill probably find a cheap metric lower and get a new stock because the hard plastic i doubt will feel nice

spider991
July 22, 2017, 16:01
Yup, imbel,....others know tons more than me but looks like a mix of brit and aussie maybe

jlo82585
July 22, 2017, 16:05
well after i find a metric lower for it are all the guts inside compatible? also there is an odd slit cut into the barrel at the end any idea why its there and is that going to get in the way of me threading the end of it?

Vulcanator
July 22, 2017, 16:16
well after i find a metric lower for it are all the guts inside compatible? also there is an odd slit cut into the barrel at the end any idea why its there and is that going to get in the way of me threading the end of it?The original flash hider was removed and the barrel cut down, probably to make it legal after the 94 AWB was passed. A good gunsmith can fix that.

tdb59
July 22, 2017, 16:17
any idea on this S/N?
<a href="https://ibb.co/iWc3zk"><img src="https://preview.ibb.co/d6YbKk/20170722_153956.jpg" alt="20170722 153956" border="0" /></a>



That is a part number and code for 1960 BSA manufacture.



...............

OLDMANPBK
July 22, 2017, 16:18
Before you change anything, go out and shoot it.

pistolero1911
July 22, 2017, 16:19
That 960- number on the charging handle is the British NATO part number. The Brits were/are a bit crazy with this enumeration. Tons of parts have individual identification numbers. The IMBEL receiver is an excellent one, looks like an inch cut as well. You did good on your first riFAL/L1A1.:fal:

jlo82585
July 22, 2017, 16:19
Before you change anything, go out and shoot it.

yeah Im hoping to get out tomorrow and test fire it.

jlo82585
July 22, 2017, 19:01
Okay one more question and I feel like I should know this.. the receiver as shown above is clearly marked .308 but .308 is not the same as 7.62 nato? It's an IMBEL receiver so what gives here?

12v71
July 22, 2017, 19:25
Okay one more question and I feel like I should know this.. the receiver as shown above is clearly marked .308 but .308 is not the same as 7.62 nato? It's an IMBEL receiver so what gives here?
It's the same thing. Shoot and enjoy.

mutter
July 22, 2017, 19:50
99.9% chance it is Metric. Should run like all hades. They cut the barrel down so they wouldn't have to add 1 of the century ear buster muzzle breaks.

Mine, I purchased years ago, is my go to hunting and shooting rifal. It runs like a dream and is very accurate for a Fal. I cut off the Century Muzzle break and put on a 3 slot and it shoots great.

Danielsand
July 22, 2017, 22:28
You have type 3 Imbel receiver that is "inch cut" (folding charging handle, and dust cover tabs). It takes METRIC magazines (and THAT is the only "metric" feature on the rifle).

The rest of the parts are British (BSA) production (with the exception of the lower, Aussie, receiver).

Excellent weapon (I have one myself, with C'nuck lower), with the "best of the both worlds" features. Serial number is in the range when drunken monkeys at CAI went on vacation, and some decent blokes put these together.

Mine runs like a champ, and eats (and spits out) everything I feed it (either .308 commercial, or 7.62 NATO). Don't feed it steel cased crap, and you'll have MBR for life.

raubvogel
July 22, 2017, 22:34
Show us the pict for the mag catch cutout

OLDMANPBK
July 22, 2017, 23:10
I'm thinking that it's cut for inch mags.

Inch on the left, metric on the right.
http://i.imgur.com/3EuKqsel.jpg

Metric inside,front of the mag well.
http://i.imgur.com/9nY0O0Jl.jpg

Inch inside front of the mag well.
http://i.imgur.com/7MNybYLl.jpg

So wattaya got inch or metric?

jlo82585
July 23, 2017, 10:41
I'm thinking that it's cut for inch mags.


So wattaya got inch or metric?

Mine is def. a metric cut out on the mag-well but the rest of the lower is inch (it has the tangs to screw in the stock).

update today- shot the rifle and the recoil is surprisingly gentle, a tad bit more than my AK-47 and MUCH less that my dads CETME. in the blazing sun the hand guards got almost uncomfortably hot to the touch ( not from firing but from the sun) so i am going to need to swap those out with something that isn't refurbished Galoob micro machines plastic. however, out of the 40 rounds I shot about 10 of them failed to ignite the primer and on a second pass all but 2 fired so my firing pin is not hitting hard enough. I will take it apart and clean the crap out of it and hopefully get back out to the range next week to test it again. the accuracy seems decent, at least minute of bad guy at 100-200 yards so cant complain there.

OLDMANPBK
July 23, 2017, 11:32
Shucks, I thought you may have lucked out and got an CAI Imbel cut for inch mags. The inch receiver in my pic is a CAI Imbel with a serial # pretty close to yours. Well at least your mags will be cheaper. Your light primer strikes could be caused by a couple of other things but you should probably get your headspace checked.

PARA FN FAL
July 23, 2017, 11:44
When I was shooting Port ammo I found that the primers were a bit hard and caused some FTF the first time because of it. I pulled out the firing pin and ground off one coil. That made all the difference and I have never had that problem again. By cutting or grinding off one coil it allows the firing pin to travel a little farther forward into the primer.

01BIRDDOG
July 23, 2017, 13:16
Nice looking L1A1 and welcome aboard.

jlo82585
July 23, 2017, 14:40
So after researching the potential issues that could cause light strikes, I took the weapon apart. There does not appear to be any rubbing between the hammer and the receiver and the rat tail doesn't appear to be in the way or have any marks to indicate it was being hit. The bolt carrier and many parts in the lower receiver appeared to be covered with anti seize? Never seen that before. The firing pin and spring were so gunked up I had to get a pair of needle nose in there to get the spring out. Both the pin and the spring were covered in a rust colored paste, my guess is antiseize as cosmoline isn't usually the consistency of butter but it has been a while since I had to mess with cosmoline.
After a lengthy cleaning I got all the junk out but I'm still not sure how stiff the firing pin spring should be. So I suppose next week I'll head back out to the range and see if it works properly, I'm usually not that lucky so I may have to see about investing in some head spacing gauges.

enbloc8
July 23, 2017, 18:03
Hey guys so I ended up buying a l1a1 Cai fal today (I know not the best option but dammit im impatient). I'm looking for info on the serial numbers.
Under the rear sight on the right side it has AD6118197 and from what I have read that means it's an Australian made in 1961. What do the rest of the numbers mean in that sn?

Means it's the 18,197th rifle made by SAF Lithgow in 1961, in this case for a New Zealand contract.

I am assuming this is a Frankenstein mix of parts on this gun and that's fine.

Most SLRs became FrankenSLRs to some degree or another in their service lives. Many of them were maintained at joint repair bases when in-theater and supplies were commonly pro-rated among the participating Commonwealth countries...and whatever was next in the bin was what got used. And in later years Britain was buying lots of parts (and even complete rifles) from Australia.