ROBAR® finishes, such as NP3 are touted to improve reliability. People often ask “how can firearm finishes improve reliability?”

A well known example that most people are familiar with is the original M16 rifle. When the M16 was first developed it was designed to have a chrome lined barrel and bolt carrier group. The geniuses in the government focused their attention on the costs of chrome lining the barrel and BCG and viewed it as an unnecessary expense. They underestimated the importance of a finish to improve reliability. Due to their failure of foresight many of our young soldiers died. Once the chrome lining was approved and implemented, along with new cleaning kits issued, reliability was increased to operational standards. However the price to learn that lesson was heavily paid by our boys in the field.

Self Lubrication

Proper lubrication is essential to reliability in firearm function. Usually a few drops of a favorite lubrication will do the trick:  Seal 1 CLP, Rand CLP, MPro7, etc. The problem with all externally applied lubricant is it eventually wears off in all the critical areas and collecting dirt and debris. In contrast a firearm plated in NP3 has the self lubrication of the Teflon®, which does not wear off.  In Robar coatings such as the NP3, Teflon is co-deposited through the nickel; all coated surfaces are evenly covered so no surface area goes un-lubricated.  Even when the firearm is run dry or with minimal lubrication, less dirt and debris have the ability to adhere to the surface of NP3. ROBAR still recommends that all firearms be properly lubricated at least for the initial break in of the NP3. After that initial break in period, depending on the type of firearm, it can then be run with little to no lubrication at all.

Self Lubrication Everywhere

NP3 plating is applied to every surface, even to areas that cannot be lubricated with oils and grease and has more ways to improve the reliability of a firearm. For example lubricant should not be applied to a breech face on a pistol slide. During normal function the back of every pistol cartridge slides all the way up the breech face when chambering. With NP3 applied on the breech face there is less friction allowing the case to slide up with less resistance. Another common reliability improvement is polishing up the feed ramp. With NP3 friction is once again reduced, allowing rounds that might have stuck on the feed ramp to slide into the chamber with ease.

Lower friction

A lower co-efficient of friction will enable more reliable function on all metal moving parts. Traditional oils can reduce friction between moving parts, but where oil needs to be reapplied and degrades ROBAR’s  NP3 stays working. NP3’s lowers friction allowing all parts to function as originally designed, with nothing to slow them down. AR builders and companies that plate their rifles  benefit greatly when going from using a regular phosphate coated BCG to an NP3 BCG. Some manufacturers have experienced a 20% increase in the rate of fire on full auto guns. That means the rifle bolt ran more efficiently and with less energy to cycle the action when plated with NP3, again leading to more reliable function.

Non-stick surface

NP3 acts much like the Teflon in a non-stick pan not allowing particles to permanently adhere. Carbon and dirt cannot imbed or bond to the NP3 and their particles are more likely to rub off even while the action cycles. These particles have trouble adhering to the dry NP3 verses them sticking to a normal surface that is lubricated or treated in other finishes. What is allows is more reliable function and longer sustained periods of firing between cleaning or lubrication of the firearm. When it does come time to clean, in most cases NP3 is able to be cleaned with a dry cloth and needs little to no solvents.


NP3 increases surface hardness of parts to 48-52 Rockwell hardness. This is a big increase from normal gun metal which is around the low 30 Rockwell scale. This increase in hardness to the surface increases parts life and can reduce breakage and wear. Corners and angels that must be maintained will last longer because of the increased hardness and low friction.  Again wear in essential parts like that of slide rails is also reduced because of the increased hardness and self lubrication of NP3. All of this increased part life means that the firearms will be more reliable for longer and last you generations to come.

Corrosion Resistance

Firearms are susceptible to rust and corrosion because of the environments firearms are exposed to. Corrosion is detrimental to the reliability of a firearm and can permanently destroy a functioning pistol, rifle, or shotgun. NP3 carries a warranty for the life of the part against corrosion. ASTM 117B testing shows that when exposed to salt spray NP3 has twice the corrosion resistance of 416 stainless steel, chrome, and nickel boron. Because of the oxygen salt water mix oxidization/rust occurs at a rapid pace. Take it a step further with NP3 Plus that can deliver 1000 hours or 10X the corrosion protection of other finishes. Even if the NP3 is ever perforated corrosion shows no tendency to migrate under the finish.

NP3 improves reliability! So the next time someone at ROBAR says NP3 improves reliability, know that it is more than just talk. It’s a FACT!

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