Here’s a quick look at 3 different style of mags for the Lee Enfield No. 1 MK III, .303 British Rifle.
10 shot original mag (Left), 5 shot Sporter mag (Middle), 4 shot tactical airborne sniper mag (Right), haha.
All 3 mags work but the original is best, followed by the British modded 5 shot mag.
I am guessing that the 4 shot mag on the right was a homegrown project, but it works too.
See the YouTube Video right here!
Happy shooting!