26JAN04 THE COLT M4/M4A1 RELIABILITY PACKAGE (.223/5.56mm) Our company receives constant inquiries on the precise modifications (mod’s) which create this unique upgrade. The “Reliability Package:” (RP) is a PROPRIETARY package developed at Specialized Armament (S/A) and tested around the world from 1995 to present. The Improvements listed: 4-6 Barrel mods 3 Gas system mods 2 Bolt group mods Upgraded buffer assy These mods give all late model COLT (.223/5.56mm) carbines greater reliability and better overall function in a combat proven weapons system which is already world-class. Each modification is small on its own, but when grouped together, these upgrades positively affect the weapon’s performance under all conditions. No further S/A Technical Data will be released concerning this COLT Reliability Package. Answers: The RP will work on all Colt Carbines (1992-present) regardless of fire contol system (Auto, Burst, 4-Way, Semi). Older Colt Carbines (1960’s-1991) can also be upgraded, but require further modification before the RP work. No, the RP will not work on NON-COLT “AR’s.” They are substantially different. Yes, we’ve tried it—results were #$%^#@. This is not an RP for Colt Rifles. The full-size weapons require a slightly different set of mods. This RP will not work on Colt 9mm SMG’s and Carbines. These blow-back operated weapons are a completely different design with their own special requirements. No, The S/A Reliability Package for Colts is not available from any other source—no matter what is claimed! We have installed the RP on countless Colt Carbines over the past 10 yrs and these weapons virtually never malfunction (unless the ammo is absolute garbage or the magazine fails). It’s pretty impressive. Ask around. Lock-N-Load (Ken)