Good choice of weapons. Difficult for most to decide between as most will never beable to tell the difference as to which one is actualy the better one.I have both back home and like both systems.
This day in age,thankfully,all manure of mods are availible for BOTH of these fine weapons systems...rails,telefolding stock adaptors,,etc...mags are plentiful and inexpensive...
+FAL...Barrels...Match grade,shorty,heavy,medium,fluted or not...this area belongs to the FALs. That I am aware of VERY few,other than hard to aquire factory parts,choices for the G3 and cousins. I currently use two FALs,one "Target" 1/2"@200yrds 3-5 shots, one shorty 16" 3/4"@100yrds 3-5 shots.
+FAL...Scope mounting...Again options are better for the FALs.
+FAL...Rebuilding the Main firesystem...FALs have it again. Roler Rocker Delayed Blowback,is EXTREAMLY dificult to rebuild. It can be done but most are beter off getting a new weapon.
G3 Fans,please tell us were to get this done if you have a scource and or info!
+FAL...Been all over the world,more parts out there for FALs. See more in service than the G3. Not so much of a problem in the U.S.A. save mail order delivery time tho'.
+FAL...Lower recievers can be had in many different configueations,including standard,para,M-16 rear sight,picatinny rear sight base,etc...
+++
FAL...
UPPERS...If you want to convert to another caliber,you can build separate uppers and switch them like an M-16. If you want to configure for a different mission/purpose build a different upper!!!
G3 will NEVER do this. I currently have uppers in .243Win.,.260Rem.,7mm-08,
.308Win.,.338Fed. and .358Win.,in many different configureations.
+FAL...Supressor use...Fal's gas adjust makes supressor use FAR superior. Even adjustable down to single shot "sub-manual" opperation.
+FAL...Gas Adjustable...Match grade to total crud with fine tuned reliability.
I can go on but I think you know my pick...I have tens of thousands of rounds on both systems,field and range and owne them both.
Reloading...as several have pointed out,under
certain conditions brass from the G3s can be reloaded with out problems...Under
certain conditions,if not adjusted properly,FALs will tare brass up and can dent the crud out of it just like the G3s.