AR receiver set compatible with Magul's Six8 Pmags for $309.99. Alternative to LWRC's Six8 receiver set that are $555 when on sale.
http://sulzerfirearms.com/mk1-spc-receiver-set-magpul-6-8spc-mag-compatible/
http://sulzerfirearms.com/mk1-spc-receiver-set-magpul-6-8spc-mag-compatible/
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