2Xalpha Posted June 10, 2019 Share Posted June 10, 2019 (edited) Tried to make an overview of all roll pins used on an AR. 1/16" x 1/4" (1.59 x 6.35 mm): Trigger Guard Detent Pin Forward Assist Pawl Pin (New round type) A1 Rear Sight Wheel Retaining Pin 1/16" x 5/16" (1.59 x 7.94 mm): Forward Assist Pawl Pin (Old teardrop type) 1/16" x 7/16" (1.59 x 11.11 mm): Ejector Retaining Roll Pin - (Btw, this size seems to be a rare special order type which is hard to find) 5/64" x 5/16" (1.98 x 7.94 mm), alternatively a 2x8 mm should fit: Gas Tube Retaining Roll Pin Charging Handle Latch Roll Pin 3/32" x 1/2" (2.38 x 12.70 mm): Bolt Catch Retaining Pin Forward Assist Pad Pin 3/32" x 5/8" (2.38 x 15.88 mm): Forward Assist Retaining Roll Pin 1/8" x 7/16" (3.18 x 11.11 mm): Type D Stock Sling Swivel Retaining Pin 1/8" x 1/2" (3.18 x 12.70 mm) Front Sling Swivel Pin 1/8" x 5/8" (3.18 x 15.88 mm) Trigger Guard Pivot Pin 1/8" x 3/4" (3.18 x 19.05 mm) Rifle Buffer Pad Retaining Pin 1/8" x 7/8" 3.18 x 22.23 mm Type D Stock Swivel Bracket Retaining Pin Hope I got that right. All these might not be used on a race gun, but here you have it nonetheless. Note that some aftermarket parts use different pin sizes. I think the image below sums up the most essential ones: Edited June 10, 2019 by 2Xalpha Link to comment Share on other sites More sharing options...
Tooltwister Posted September 4, 2020 Share Posted September 4, 2020 Super awesome chart! Saved me a lot of time and trouble. I'll be back, Thanks! Link to comment Share on other sites More sharing options...
Wdee Posted February 5, 2021 Share Posted February 5, 2021 Saved me sooooo much trouble on roll pin sizes. Thank you sir for your information !! W.D. Link to comment Share on other sites More sharing options...
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