April 25, 2021, 08:34 PM | #1 |
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Join Date: August 28, 2012
Location: In AZ, Where Free Men Live
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M1a roller / no roller
I always thought that the commercial Springfield M1As had a roller on the bolt, in the fashion of the M14.
Much to my surprise, my SOCOM 16" bolt looks lots like my Garand bolts. When did they change the design? ---> Perhaps they thought they din't need the roller on a semi auto? ---> Is there a downside to no roller? I can not find even a trace of this information on the Springfield site, which i deem "bewildering." tanks. pc/macd
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April 25, 2021, 11:29 PM | #2 |
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What do you mean my rollers? Like roller delayed blowback system? If that is the case the M1a Is a piston operated gas system, no roller delayed. I always understood the M1a bolt to be an almost identical copy of the garand.
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April 26, 2021, 08:40 AM | #3 | |
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Quote:
The M14 bolt has a roller bearing where it engages the op-rod. My Winchester M14 has a roller.
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April 26, 2021, 11:53 AM | #4 |
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My M1A is one of the early ones made with all GI parts (other than the receiver).
It has a roller on the bolt.
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April 26, 2021, 12:28 PM | #5 |
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Your rifle is the best of them all. They started going down in quality when they ran out of GI parts.
Last edited by Donald duck; April 26, 2021 at 03:26 PM. |
April 26, 2021, 03:25 PM | #6 |
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Join Date: April 19, 2021
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All GI M14 bolts that I have seen had rollers
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April 29, 2021, 12:30 PM | #7 |
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My M1A goes back about 30 years with GI parts. Bolt has a roller.
Springfield Armory versions aside all the ones I have seen have the roller on the bolt. In the image the bolt is stripped and a headspace gauge inserted in the chamber. Matter of fact there are tools and instructions for greasing the roller. Ron |
April 29, 2021, 06:45 PM | #8 |
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This video shows one . About the 13:30 point
I have NEVER seen a M1A, regardless of model, without a roller. https://www.youtube.com/watch?v=OTBj21fkTHE |
May 16, 2021, 07:08 AM | #9 |
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My HK has rollers LOL
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