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April 25, 2021, 08:34 PM
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#1 |
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Member
Join Date: August 28, 2012
Location: In AZ, Where Free Men Live
Posts: 51
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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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NRA & CRPA Life Member for over 35 years |
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April 25, 2021, 11:29 PM
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#2 |
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Senior Member
Join Date: March 21, 2012
Location: Indianapolis, IN
Posts: 3,973
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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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I don't believe in "range fodder" that is why I reload. |
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April 26, 2021, 08:40 AM
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#3 | |
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Senior Member
Join Date: March 18, 1999
Location: Nogales, AZ USA
Posts: 4,000
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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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God gave you a soul. Your parents, a body. Your country, a rifle. Keep all of them clean. |
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April 26, 2021, 11:53 AM
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#4 |
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Staff
Join Date: March 11, 2006
Location: Upper US
Posts: 28,832
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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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All else being equal (and it almost never is) bigger bullets tend to work better. |
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April 26, 2021, 12:28 PM
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#5 |
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Member
Join Date: April 19, 2021
Posts: 34
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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. |
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April 26, 2021, 03:25 PM
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#6 |
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Member
Join Date: April 19, 2021
Posts: 34
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All GI M14 bolts that I have seen had rollers
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April 29, 2021, 12:30 PM
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#7 |
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Senior Member
Join Date: June 8, 2016
Location: Cleveland, Ohio Suburbs
Posts: 1,750
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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 |
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April 29, 2021, 06:45 PM
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#8 |
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Senior Member
Join Date: February 17, 2009
Posts: 1,089
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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 |
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May 16, 2021, 07:08 AM
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#9 |
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Senior Member
Join Date: July 14, 2008
Location: South Carolina
Posts: 2,918
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My HK has rollers LOL
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We know exactly where one cow with Mad-cow-disease is located, among the millions and millions of cows in America, but we haven't got a clue where thousands of illegal immigrants and terrorists are 
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