I recently ordered and receive 3 Lar-15 lowers and 3 A4 Uppers during the assembly of these parts I found that I can not get the uppers to mate with the lowers. I can get the pivot pin in, but the lower and upper will not mate. I am able to put the lowers on a DSA upper and the uppers on a Spike's lower. Am I missing something or could there be something wrong with these components? Thanks in advance for any hints.
Steve H
You may want to read up on this section of arfcom in regards to RRA tight fitting receivers and it will likely answer your question. What you are experiencing sounds totally normal. The fit will be initially tight, but will loosen up once you shoot the gun. RRA makes excellent products and I highly doubt they are defective...
http://www.ar15.com/forums/t_3_66/282974_Why_won_t_my_new_upper_receiver_lock_close_on_my_new_RRA_lower_receiver_________.html
Originally Posted By FL-HDRYDA:
I recently ordered and receive 3 Lar-15 lowers and 3 A4 Uppers during the assembly of these parts I found that I can not get the uppers to mate with the lowers. I can get the pivot pin in, but the lower and upper will not mate. I am able to put the lowers on a DSA upper and the uppers on a Spike's lower. Am I missing something or could there be something wrong with these components? Thanks in advance for any hints.
Steve H
Posted Via AR15.Com MobileYou were exactly right. Thanks for the reply. All 3 uppers and lowers are assembled and awaiting the remaining parts. Thanks again.
Steve
