NEW: DuraChromeŽ and DuraboreŽ


If you have always wanted a chrome lined barrel for your AR-15 style rifle, but were worried about cracking, flaking, accuracy or other problems related to chroming, we have the answer for you. If you’ve ever thought of standard hard chrome plating of some internal parts or bolt carrier assemblies, look no further.

Demand on a military quality or better bore coating has been high for both civilian and military/government work. For this reason Olympic searched the metals coating world for the best option. We have found it.

Dura-BoreŽ and DurachromeŽ is a proprietary coating of a dense chrome material that is more lubrous, more flexible, more durable, more corrosion resistant, more heat resistant, and harder than any chroming system ever developed.

Major features include:
Superior hardness. Rc 67-70!!
More Lubrous than standard hard chrome. This will reduce fouling of all types, as well as provide the shooter less variances in shot string velocities, a very critical point for accuracy shooters.
More consistent thickness of the barrel coating. This is a non-dimensional coating that does not require the changing of any machining tolerances.
Greater resistance to heat (-400° f to +2300°f)
Dramatically reduces barrel wear. Not only in the bore, but in the chamber and throat as well.
More flexible. Dura-BoreŽ will not chip, flake, crack, or peel from any barrel surface, guaranteed! Dura-chromeŽ has even been tested on various types of springs and showed no sign of separation of any type.
More resistant to corrosion. Has resisted all organic and non-organic compounds tested, except hydrochloric acid.

Dura-Bore® and Durachrome® are only available in our button rifled, 4140 Chromemoly steel AR-15 type standard military style barrels at the additional cost of only $80.00 per barrel, and are subject to availability of stock on hand only. Sorry, no special orders. Durachrome® is currently available on complete bolt carrier assemblies.

DuraboreŽ and DurachromeŽ are only available on new Olympic Arms and Safari Arms products. It is not available as a treatment on customer supplied products.

[NOTE: We still stand by the fact that when trying to acheive the utmost in accuracy, a chrome lined barrel of any type will generally speaking be LESS accurate than a barrel of the same type that has NO bore lining of any type, be it chrome or otherwise]