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Posted: 2/16/2011 7:48:07 AM EDT
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Is this an appropriate set for building a lower? Punch Set
Proper diameters and lengths are the issue I suppose. Professional gunsmith punch and hammer set in a hard, plastic case. Kit Includes: # 1 Nylon Hammer # 1 Brass Hammer with steel knurled shaft # 8 each brass punches from 1/16" and 3/32" # 2 each Delrin Punches 15/64" and 3/8" # 2 each steel punches 1/16" and 3/32". |
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You need a good set of roll pin punches to assemble an AR lower correctly. You could assemble a lower with out them but they make the task easy. That kit says Sig Sauer Armorer's Punch Set which would be for a Sig pistol. You could probably assemble a lower with it, but its not ideal.
These are some of the best. Brownells Roll Pins Here is a very nice set (currently out of stock) that I wish they had years ago as I have this set that I bought separately and spent a lot more on them. roll pin set |
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Thanks. I'm trying to get a little kit together prior to parts getting here. Just thought this worked but not weapon specific.
I can be a bit of a klutz, so brass and delrin could be insurance against a slip or missed hammer tap. 
I DO like the cute little hammers. 
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These are what I use. They have served me well.
Proto Roll Pin Punches They are listed by part number below the picture if you only want to get what you'll need for the AR. These sizes should cover your complete rifle IIRC: 5/64" 1/16" 3/32" 1/8" Midway has a less expensive set of holding/starter punches (2) made by Schuster. These are not a replacement to the above mentioned set. They are for holding and starting only. They have a different size hole in each end to hold the pin while you start it. Helps if you need a third hand. If you only work on your own rifle, not for heavy use in other words, they should work fine, they have for me. Use a brass hammer on these!! If you plan to drive a lot of pins, get the Brownells starter punches. Schuster Roll Pin Punches P.S. If you use a small amount of oil on the pins and the hole, they will go in easier! 
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| I got a Craftsman steel punch set from Sears so when they bend or break (and they will), you could exchange it for a brand new one. I have used Grace punches which are longer than the Craftsman but I got tried of buying new ones when the break. I also use a nylon/brass hammer from Brownells and Schuster roll pin starters. |
| Whatever set you purchase just make sure they are "roll pin" punches..........get the right tool for the job......I have a set of Mayhew........that have served me well over the last twenty years of playing with AR's........I just used them yesterday to assemble an Aero precision lower.............money well spent........... |
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Hello, cash challenged builder here. If you like collecting tools, ignore this.
Use vice grips to press the pins into the lower. You won't ever miss and hammer or scratch the lower, and the trigger guard ears are less likely to break off. Old drill bits - or even cheap imports - also work. If they're dull, they're punches. No, they aren't roll pin punches with the nub in the middle. FYI, check the country of origin on those brand name tools at BoxMart. Harbor Freight offers the same. I sell brass punches for auto use $15 higher than HF, same country of origin. Made in the USA is rare now, regardless of the brand. Posted for the guy who already has tools and no money in his build to spare. |
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