Premium Blend Lubricant: SPEC1 Premium Blend lubricant contains a proprietary anti-wear agent that reduces friction and wear by 95-98%. Falex tested at 4500 PSI. Penetrates existing lubricants. Will not harden, become sticky, or tacky. Works in extreme temperatures (-110?F to 1250?F), and it will not attract dust, dirt or sand. SPEC1 Premium Blend Lubricant can be used on ALL firearms