[Brother in Arms]

SSC

The L1A1 is called the SLR by British Troopies. Not sure if they call the L2A1 the AR though, they were mostly issued L4A1 BREN (7.62NATO conversions)
Pretty sure canuks called them C1 and C2 (they issued a lot more C2's than the British ever did L2, in fact I believe the Brits sold most of there L2's off to other nations.)

You are absolutely correct about L4 BREN magazines. I have used C2 mags and they are great, I have seen many pics of british soldiers using L4 Magazines in there SLR but never using the L2 Magazine in them. I have seen pics of Rhodesian troops using standard 20 round mags in there L4 BREN's.

Real SLR are easy to convert, you can swap out the selector lever, or grind off the stub that stops it from rotating. (often done on FAL as well) or the Match stick or fishing line trick. But civilians rifles (for the most part exception being the Belgian FAL semi autos') don't have auto sears...the military rifles all do, so they can be easily converted using parts swap or field expedients.

I have seen the Civilian rifles without auto sears converted (milled to accept them) and full auto ejector blocks installed.

I have seen both SLR and AR conversions used in VN and they are amazingly hardcore!!!!
Take the bipod off the AR and mount the XM148 grenade launchers.
The ANZAC troops where tough!

Brother in Arms