Posted: 2/17/2004 6:32:21 AM EDT
| I am gathering parts right now for my first AR Build....I have my lower and I orderd my upper and LPK and everything else, and Im going to purchase a barrel from CMMG...so I was wondering if their is anyone who can help or assemble it for me? Since a friend asked someone who's into AR builds and said that he'll do it for 100.00 which I was thinking was kinda of high considering you can get the lower assmebly without butt for about 10-20 more and thats where most of the work is at....so any advise or help would be appreiciated..I live by the Metro Airport |
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Assembling an AR is the easiest gunsmithing and most fun you can have with firearms. The entire lower receiver can be assembled with simple hand tools (make sure you have small punches) and the upper requires only a receiver block (clamp), basic armorors wrench (as long as you are not doing a fancy floated bull barrel install) and a torque wrench. Pick up an armorors manual for $10-15 if you like, but there are plenty of exploded views available that show the assembly and this site has instructions for function checks. I've assembled uppers before, but am also now waiting on delivery of lower pins and springs to complete a dedicated lower for my .50 cal upper. They also sell a lower receiver mounting block that is simply a piece of plastic the size of a long magazine. You slip it into the mag well and clamp in a vise. Makes a nice work platform for assembly, but you can do the same thing with the right size chunk of wood for free. When you are done, take the entire gun to a gunsmith for a $5 headspace check. Have fun, by the way I'm in Allen Park Mark |
The lower is a piece of cake. You will need a good set of punches tho'. The hardest part about the lower is driving the roll pins without scratching anything. The trigger is a little tricky with getting all of the holes lined up, but it just takes patience. I haven't done an upper yet. That's the one I'm a little afraid of. Maybe I'll give it a try this summer. |
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All good points. The triggerguard pin is easy since it's sideways and easy to press or drive. The bolt catch pin is the tough one. The receiver block is very helpfull for this. Set it sideways in the vise so that the end of the receiver can rest on your bench as you drive the pin with a flat punch or drift(the masking tape trick is valuable here). Use a pointed punch to make the final set flush. I have all this equipment and would be happy to help you out if you are not done yet. Mark |
Thanks for the offer Mark and to everyone else with advise and offers to help, but since this is my first AR..I was able to find someone to build it for me for 45.00 he's a Colt Armorer for a Sheriffs Dept. bigant |