HPA 1 item(s) found -- Sort by --A to Z (title)Z to A (title)Recently added (latest)Date added (oldest)Most viewedLess viewedPrice (low to high)Price (high to low) -- View as --ListGrid WTS: Complete P* HPA Setup for an M4-Style Replica $550 Posted 2 months ago by Bearsoft I am selling a complete HPA setup for an M4-style replica. This setup is super low-profile and will easily fit in a flat pack. Sorry,... HPA / 14 views$550.00