I was just notified that the AA 24" Grendel AWS Upper Receiver with Shilen Barrel I ordered is being shipped on Monday. I was planning to use an LMT lower with a SOPMOD collapsible stock that I use with a Larue 18" Stealth upper. However, it has a much smaller/lighter recoil spring and buffer than the Colt 20" A2 HBAR AR I have. I was wondering whether the LMT lower with the small spring and buffer would work ok with the 24" Grendel or should I maybe use the Colt lower. Or should I buy a heavier buffer and spring for the LMT lower (and would it still work ok with the Larue Stealth)?
Thanks in advance for any advise.
Thanks in advance for any advise.
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