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kel · 08-22-2006, 03:18 PM

Double action only = Long heavy trigger pull every shot
Double action = Long heavy pull on the first shot for autos, and long pull on every shot for revolvers unless the hammer is cocked manually. Anyone bringing up the Mateba gets a swift kick in the nuts.
Single action = Light trigger pull for all shots, on an auto the hammer must be cocked manually by hand or by racking the slide, on a revolver it must be cocked by hand.

Glock, Certain Walther P99 variants, Springfield XD, HK LEM etc. are all striker fired so the terminology get's a bit muddy. Each gun precocks the striker to varying degrees, on a, on the Glock is around say 30-40% cocked, on an XD it is around 95% cocked. All are classified as DAO although the XD is really SA and can have a trigger pull below three pounds.

Certain non-striker fired autos that are classified as DAO (Para LDA comes to mind) have a lighter DA pull by precompressing the mainspring after each shot.

The precocking/precompressing done by SA XDs, Glocks, and Para LDAs is the reason they cannot be dry fired more then once without racking the slide. The P99 has a superior mechanism on all variants that allows for double strikes. Sig has a new system called DAK that offers a lighter DAO pull by offering increased leverage.

08-22-2006, 03:18 PM	#9 (permalink)
kel WARNING: FLAMMABLE Location: Ask Acetylene	Double action only = Long heavy trigger pull every shot Double action = Long heavy pull on the first shot for autos, and long pull on every shot for revolvers unless the hammer is cocked manually. Anyone bringing up the Mateba gets a swift kick in the nuts. Single action = Light trigger pull for all shots, on an auto the hammer must be cocked manually by hand or by racking the slide, on a revolver it must be cocked by hand. Glock, Certain Walther P99 variants, Springfield XD, HK LEM etc. are all striker fired so the terminology get's a bit muddy. Each gun precocks the striker to varying degrees, on a, on the Glock is around say 30-40% cocked, on an XD it is around 95% cocked. All are classified as DAO although the XD is really SA and can have a trigger pull below three pounds. Certain non-striker fired autos that are classified as DAO (Para LDA comes to mind) have a lighter DA pull by precompressing the mainspring after each shot. The precocking/precompressing done by SA XDs, Glocks, and Para LDAs is the reason they cannot be dry fired more then once without racking the slide. The P99 has a superior mechanism on all variants that allows for double strikes. Sig has a new system called DAK that offers a lighter DAO pull by offering increased leverage. __________________ "It better be funny"