How long is the combat history for the UC?

[Tony Smith]

Also, of note the Republic of South Africa (being a bit on the "Outer" in Commonwealth nations due to Apartheid) was not a party to the L1A1 SLR production, which is known in firearm collector circles as the "Inch FAL".

RSA rifles are the "Metric FAL" produced in Belgium, so the 20rd magazines for the R1 FAL, and by association, the 30 round RSA 7.62mm Brens, are not interchangeable with the L1A1 SLR (aka C1), L2A1 AR (aka C2), or L4A1 Bren. This probably makes the RSA Bren quite unique amongst all the family of Brno ZB/Bren weapons.