Difference between 1911 and XD function:
- Thread starter Luckyorwhat
- Start date
Pietro Beretta
CGN frequent flyer
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- Ontario (G.T.A.)
The difference is apples to oranges
I have been a 1911 fan for many years. Fired a few Glocks etc but I am not an expert on them but here goes.
My opinion only : I could be way off:
Both are delayed blowback meaning the slide & barrel move back together a little bit until the pressures drop off.
On both the rear of the barrel drops during recoil & the front tilts up.
The 1911 barrel locks up with lugs on top of the barrel going into recesses on the inside on the slide. Glocks have a square back that locks up & into the slide.
Same concept though.
The main difference is in the firing mechanism.The 1911 is a trigger,sear,external hammer system & the Glock is a striker system that is all internal.
IMO anything on the front of the barrel will work the same on both styles.
My opinion only : I could be way off:
Both are delayed blowback meaning the slide & barrel move back together a little bit until the pressures drop off.
On both the rear of the barrel drops during recoil & the front tilts up.
The 1911 barrel locks up with lugs on top of the barrel going into recesses on the inside on the slide. Glocks have a square back that locks up & into the slide.
Same concept though.
The main difference is in the firing mechanism.The 1911 is a trigger,sear,external hammer system & the Glock is a striker system that is all internal.
IMO anything on the front of the barrel will work the same on both styles.
http://www.guns.connect.fi/rs/mxgraaf.html
MX12, MG16 and MG12 Minireflex Moderator variants are "moderator"-class sound suppressors lightweight enough to enable semi-auto operation of most recoil-action 9 mm pistols shot with full power ammo, like CZ and Tanfoglio, Beretta and Taurus, FN Hi-Power and its variants. Most heavy bullet subsonic 9 mm ammo will also cycle their action satisfactorily. These pistols may require a spare shortened recoil spring for suppressed shooting to compensate the extra weight added to moving barrel.
Straight or delayed blowback pistols with fixed barrel, like 9 mm Heckler & Koch P7 and almost all 7.65 mm pistols, will cycle normally without any modifications to recoil spring. Some recoil action pistols, like Glock, are especially sensitive to any extra mass attached to barrel. For Glock, ask for the extra lightweight MG12 Minireflex Moderator. Both main and striker springs of Glock need to be shortened for reliable functioning with any mass like a suppressor or an effective muzzle brake mounted to barrel. Use unshortened spare main spring when not using a moderator to avoid stressing slide and action.
Straight or delayed blowback pistols with fixed barrel, like 9 mm Heckler & Koch P7 and almost all 7.65 mm pistols, will cycle normally without any modifications to recoil spring. Some recoil action pistols, like Glock, are especially sensitive to any extra mass attached to barrel. For Glock, ask for the extra lightweight MG12 Minireflex Moderator. Both main and striker springs of Glock need to be shortened for reliable functioning with any mass like a suppressor or an effective muzzle brake mounted to barrel. Use unshortened spare main spring when not using a moderator to avoid stressing slide and action.
That's probably what the person was talking about. So delayed-blowback the barrel doesn't move then, all the force is imparted by the case directly to the slide?
On more thought, the USP comes factory with a heavy muzzle brake on it, or threads for an even heavier suppressor. But it's described as short-recoil operated locked-breech. ?
On more thought, the USP comes factory with a heavy muzzle brake on it, or threads for an even heavier suppressor. But it's described as short-recoil operated locked-breech. ?
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Yes, I guess the factory comped Glocks are longslide versions, and the other one I fired was through-slide ported, but I have seen BHP's with weight hanging off the front (from the factory), Berettas too- not factory but no FTE. 1911's work just fine with weight out front, and are easier to suppress than virtually any pistol since the standard full power service load is already subsonic.
The through slide ported Glock I fired recoiled downward, very wierd, because it still comes back, just the exact opposite of what you're expecting. The rep was having a good giggle about the looks on peoples faces. He was loading (I think 155 +P in 40 ) hot rounds, he said he wished he had a camera for the look on people's faces. The second shot in a pair always came in low.
I read on article a few years ago about a cartridge that IPSC great Rob Leatham helped develop along with Dillon . In the gun that he used, the upward force from the compensator was more than the recoil of the gun. As a result, when it fired the comp pushed the gun down rather than up.
Rather useful if you are shooting a whole row of steel plates with lots of money at stake.
Rather useful if you are shooting a whole row of steel plates with lots of money at stake.
Cocked&Locked
CGN Ultra frequent flyer
- Location
- S. Ontario
Actually the 1911 is a tilt barrel, that's the purpose of the link at the bottom of the chamber, to pull the barrel down out of lock up and allow the slide to continue backwards to clear and reload. John browning figured out how to do this without the link in his later pistol designs, reaching their pinacle in the High Power. The early large frame auto's he built had a link at both the front and back of the barrel swinging it down over it's whole length, the bushing was designed to remove those extra moving parts and make fitting and building cheaper and easier.
