FN FAL and L1A1 or C1A1- Part 4 - YouTube
Differences between Inch and Metric
Inch
1.Stud sling swivel on stock
2. Serrated gas block
3. Heavy plate magazine lip
4. Rail for cocking handle stops before the receiver ring, allows for folding cocking handle to fold flat
5. Much larger magazine recess for the magazine catch
Metric
1. Inset sling swivel
2. Threaded gas block
3. Small notch magazine lip
4. Rail for cocking handle goes all the way to the front
5. Small magazine recess for the small magazine lip
Main question now that's left, is how well do the parts between KA FAL and real steel fit into each other. If the cross compatibility is high, then the main challenge would be acquiring real steel parts. If the cross compatibility is low, then the main challenge would be getting a machinist to modify the rifle itself.
Edit:
http://www.popularairsoft.com/review...itish-l1a1-slr
Seems like Kings Arms are making their own L1A1.
From what I've read, seems like the only modifications needed to convert a L1A1 to C1A1 is adding the Canadian rear sight, stripper clip-guide breech block modifications, and the wooden furniture. It's even got the fold away trigger guard which is great.