Sorry bud.What platform you asking about?
What would the ideal bolt weight for straight block back 45 be?
Any way to get around bolt weight with a extremely stiff spring ?
I've read it should be around 2 pounds but I've seen some builds saying there where near 1 pound
Sorry bud.What platform you asking about?
.45acp = 2.3Lb
Blowback Gun Design
Thompson weighs in at 24 OZ.
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I'm not sure my idea was going to work . I got a 45 bolt carrier for a ar15 that was chopped behind the firing pin. I was going to make it side charging and not use the buffer so I can use a folding stock. Mac 10 recoil spring in the area where the charging handle normally is.
My idea to add weight was to open the gas tube hole in the upper upper yet and add a rod to the bolt to add weight like a ak piston . I'll have to see what will fit in the handguard. I have a bunch of broken carbide end mills so I was going to press them in the tube .
I might just use the bolt for my bullpup I've been working since I can add weight like that and not be limited by space .
WB,
bolt weight is important on blowback subguns... BUT the main things affecting the changing weight per caliber is type of actions, stroke of bolt, type of FCG it goes against, barrel length. the actual purpose of the spring should really only be to chamber the next round & as a slight recoil/damper... relying on the spring itself to do all of the work makes for a short lifespan on the spring & usually the build.
lots of open bolt 45's use bolts much lighter...
tommy's vary from 22 to 25 oz's in FA & you can make one run with 18oz of bolt in a semi auto hammer fire set up because the FCG set up gives extra resistance.
now in particular for the ar set up your talking about?
THIS is the nicest thing out there in off the shelf stuff.
AR-15 PISTOL BUFFER KIT "FIRST GENERATION". you can do a lot with this set up.
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Building or Bitching? which are you here to do?
YES, i work for TEC Tactical. 02/07 SOT
According to the specs, a blowback HiPoint .45 weighs 35 ounces for the whole gun. So lighter than optimum can work.