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"Barrel NUT plunger "

Not sure why I cant edit the above post.

If you are ever building an L4A3 and do not have the original mag dust cover this can be of use.


Never paid much attention to the lowly dust cover included in my L4A3 parts set but it was a...

You are correct sir!

After looking at it I need to cut the rear surface a bit , the magazine adapter has a step in it so a little more off the right side than the left.
Need to eyeball it how far...

Hopefully I will have time tonight to put more bits back together.

Never fails when you are in the position to put things back together you always run into something that sets you back.

Cant find the barrel nut retainer / top dust cover spring , stole the one...

Stripped everything down to parts , parked the receiver , barrel , small parts and everything else. I wanted parkerizing on all the internals since its impossible to paint some things. Shot a light...

The L4 seems to have more recoil impulse when fired semi , the 303 is just smoooooth.
Its easier to find or load 7.62 and most of the 303 surplus is drying up or decades old.

I have several...

Well I can now claim victory / I had a successful test fire and wrapped up a couple minor issues that I missed and created.



My initial test fire I thought I had it but I was getting singles ,...

Finished winding a couple new striker and recoil springs , making separator tubes and recoil spring guide. Also slotted the bottom of the striker to clear the disconnector and not drag moving forward...

Useful info is never hijacking !

Poor double dovetail.
There is a difference in welding trailer hitches & gun stuff.

Fathers day , a day for working on gun stuff !

Put my bolt together with the internal transfer bar.
This L4 / 7.62 bolt thru me a little curve from the dimensions i used on my MKI & MKII bolts....

I did pick up the 3rd leg for my tripod~

https://i.imgur.com/I7Nn4xn.jpg

Cutting back mag well weld material and L4 magazine adapter now fits again. Tested a few L1A1 20's and all 12 of my L4 mags and they all fit VERY nice.
I think I am close to being too tight / too...

Of all the welds repairing the Bren the cut in the mag well is the most important IMHO. It's this section that holds the locking shoulder to set headspace and holds the pressure on firing. You want...

Internal weld cleanup.

Machining out the lower frame and bolt carrier guide rails.
Keycutter did it's task and lower frame slides on and the bolt carrier has full travel without any tight spots....

Exterior weld cleanup.

Using aluminum oxide abrasive 2" disc's and my air die grinder on exterior welds. It can knock it down quickly but if you are not careful it can cause you extra work. I...

Whomever that did the cocking handle re-work did an excellent job.

I enjoy seeing craftmanship and things done correctly.

Nothing more irritating than going to use your shop equipment and something does not work.

Went to use my tig welder ( I have a water cooled torch ) and noticed coolant on the floor....... return...

Just a beat up 303 mag case I will have to fix and modify.
I bid on one listed in the UK but got sniped at the end of the auction since I could not watch it.

Some Bren guns were cut up with a passion of them never firing a shot ever again. It takes time to reverse the process. Not a lot of L4's around in firing condition full or semi. I did manage to get...

Closing the gap.



Torch guy must hate bren guns but I think I am gaining on the damage done. I want to even the gap side to side for even finish welding. I will double check my spacing (I...

Working in circles between bathroom repair , work and Bren stuff.

Cleaned up welds and dimensionally everything is correct. Cocking handle fits and slides back and forth under its own weight. Rear...

Managed to get some build time on the L4.
Welding & porosity , a fun fight.

The rear section was cut thru the rear retaining pin hole ( that's not horrible to fix ) but ran into a few other...

Before joining the mag section together ( and set the headspace ) denial pins are required to keep an unmodified bolt from dropping in.

Bolt denial pin locations:

1.250" from the receiver...