Quote History Quoted:
fal files is what to google
to tell the difference in inch and metric look how the sights read meters=metric
yards= inch patteren
right arm f the free world
get one soon
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FN produced rifles with sights marked (and graduated) in yards for the U.S. Army, SADF, and Irish military at minimum. The evaluation/trials rifles for Britain and maybe Canada could have been marked that way as well, but I forget. People have done parts kit builds here in the U.S. with yards-marked sights. I think H&R and High Standard's FALs were also yard-marked.
So-called "Inch" rifles are the Commonwealth rifles made by Australia, Canada, and the UK. Indian rifles are pretty similar, but have some differences plus a couple of features partially in common with other rifles ("metric" ones). IIRC, the blueprints use the same units of measure as FN's. Differences can include the front and rear sight designs, the gas port being located at 45 deg. from vertical, IIRC (with corresponding changes to the gas block and plug), 21" NBC barrel as standard, various differences in the handguards, stowable trigger guard (for use with gloves), somewhat diferent construction of lower and stock, the use of a derivative of the long flash suppressor as standard, retention tabs on the top covers (the Canadian ones and earliest British ones had charger-guide top covers), different receiver lightening cuts (except for some Canadian rifles), different carry handles, extended selectors, sand cuts as standard (not in Canadian rifles, though), BHO without the last shot feature (in some cases), different magazine catch (optimized for left-handed actuation), folding charging handles as standard, different means of attaching certain FCG parts and the pistol grip, differences in the magazines, and a few other small differences. Indian rifles are pretty similar if rather crude, although the rear sight is a hybrid of the FN and British designs. A number of parts are interchangeable with FN and similar rifles from other manufacturers. Some are not.
FN made rifles along with FM in Argentina, IMBEL in Brazil, Steyr-Daimler-Puch in Austria, Lyttleton Iron Works (subsidiary of ARMSCOR) in South Africa, Nigeria, Israel, and a company in Greece (I forget the name). Mexico, Venezuela, and I think others did partial manufacturing or assembly only. HK made some parts for a bit. I think FM is still making small amounts for the Argentinian military, IMBEL is making a modified version as the IA2, and I believe Nigeria may still be making them. So-called "metric" rifles vary widely in configuration.
Domestically, mostly if not entirely without any FN licence, receivers and other parts (plus assembly of rifles) has been done by Entreprise Arms, DS Arms, Hesse, Century, Coonan, and others, plus assembly in the U.S. on imported receivers (typically FM or IMBEL). Quality has been spotty with many, sometimes with serious issues. DS Arms used to have LMT make its receivers, but it no makes them in-house and has had huge QC issues on them and with other parts. Coonan is the only company that makes receivers currently besides DSA (which also makes complete rifles) and it seems that they are no longer providing real customer service for defects, are having QC issues now, and are scaling back their receiver manufacturing efforts.