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Metric vs. Inch FAL



the STG-58 is detailed here on the collection page
*a work in progress, contact for errors and omissions



The inch pattern FAL has a larger extended magazine release and narrower bolt hold open device
Left: L1A1
Right: STG-58



Left: L1A1
Right: STG-58



The inch pattern FAL has a wider mag catch and can use both metric and inch pattern mags, while the metric FAL has a smaller catch
Left: L1A1
Right: STG-58



Notice the large lug on the inch pattern magazine compared to the small stamped protrusion on the metric
Left: Inch Magazine
Right: Metric Magazine



The inch pattern FAL has an extended selector disallowing movement to the auto position and to break in two, the vertically
oriented lever is moved rearward, as opposed to the metric pattern whos horizontal lever is moved upward
Left: L1A1
Right: STG-58



The inch pattern FAL has a folding charging handle compared to the metric FAL and its large knob which locks into a detent

Left: L1A1
Right: STG-58



Unfolded, the inch pattern charging handle is unlocked, while the metric is locked with a detent
Left: L1A1
Right: STG-58



Notice truncated charging rails on the inch pattern and detent on the metric between the rails
Left: L1A1
Right: STG-58



Inch and metric pattern gas blocks, plugs and sights differ slightly, as well as positions available on the gas adjuster
Left: L1A1
Right: STG-58



The metric pattern grip is secured with a bolt through the center, unlike the strap on the front of the inch pattern's grip
Left: STG-58
Right: L1A1



The inch pattern receiver cover has locking tabs on the rear, while the metric cover has none
Left: STG-58
Right: L1A1



The inch pattern receiver cover rails are notched for the tabs on the cover
Left: L1A1
Right: STG-58



Inch pattern bolt carriers are angularly cut to evacuate particulate from the rails on cycling
Top: STG-58
Bottom: L1A1


Top: STG-58
Bottom: L1A1