HELIX HD 2-16×50 SFP HELIX HD 2-16×50 SFP HELIX HDLR 2-16×50 SFP HELIX HDLR 2-16×50 SFP HELIX 4-16x44 FFP HELIX 4-16x44 FFP HELIX 6-24x50 FFP HELIX 6-24x50 FFP HELIX 6-24x50 SFP HELIX 6-24x50 SFP