FAQ

  1. Does the Relia-Bolt fit my AR-15/MSR based rifle/carbine/pistol?
    a. If you have an AR-15, M-16, or M-4 variant made between 1962 and now that ejects on the right side (not left-handed) and is chambered in cartridge with a 5.56x45mm/223 Remington sized case head the answer is yes, it will drop in as a direct replacement for your standard bolt. No special barrel extension or bolt carrier needed.  The calibers known to be included in the list of cartridges that fit a standard bolt are: 5.56x45mm, .223 Remington, 300 Blackout, 300 Whisper, 222 Remington, 221 Fireball, 204 Ruger, 6x45mm. This list is not all inclusive. If you wish to check your cartridges head size, simply take a 223 Remington case and match it against your current cartridge, if the rim is the same size, it will function with our bolt.
  2.  What if I have an AR-15/MSR based rifle/carbine/pistol in another caliber?
    a. If you have a 6.8 Remington, 6.5 Grendel, 7.62x39mm, WSSM cartridges or another caliber, we may expanding the line to include your cartridge families, so check back often.
  3. What if I have an AR-10 based rifle/carbine/pistol?
    a. Good news, while our bolt isn’t yet made for 308 Winchester/7.62x51mm cartridges or cartridges in their case family which include 243 Winchester, 260 Remington, 6.5-08 A2, 7mm-08 Remington and others, yours is the next on our list. We will update the website and make a public announcement when they are ready.
  4.  Does your bolt require a special bolt carrier or barrel extension?
    a. No, absolutely not. If a standard 5.56/.223 bolt fits in your rifle, ours will as well.
  5.  Does your bolt require special parts?
    a. No, absolutely not. If it’s a part that fits a standard 5.56/.223 bolt, it will fit ours.The dimensions for the extractor, cam pin, ejector, etc. are the same. Also, if it is an upgraded part that fits a standard bolt, it should fit our bolt as well, but always consult the manufacturer of any such product for specific guidance.
  6. Does the contouring of the top part of the lugs make your bolt weaker?
    a. No, it does not.
  7.  How can it not be weaker?
    a. The front of the bolt’s lugs do not touch the front of the barrel; a gap is required for the system to operate. Square edges may be easier to manufacture, but they also promote jamming due to limited clearance in the barrel extension for dirt, debris, carbon, etc.
  8. How does the bolt prevent jamming (against the barrel extension)?
    a. The rounded and contoured surfaces of the lugs act like a cam and allow the bolt to guide itself into proper alignment, so it can continue into battery.
  9.  Does the bolt prevent jamming other than against the barrel extension?
    a. Yes, it does. If you look at previous bolt designs from the side, you will notice the to guide itself into proper alignment, so it can continue into battery. lugs have square/90 degree corners that fit into the square upper corners of the barrel extension. This provides very little clearance for debris, and the timing must be nearly perfect. If you compare the Relia-Bolt lugs to the same squares in the barrel extension, you will notice there is plenty of room for dirt and debris to collect until it can be cleaned out.
  10. Does this mean I never have to clean the bolt or the barrel extension?
    a. No, it doesn’t. In fact, it makes it more important to perform a thorough cleaning as the platform can now run longer and get dirtier than before. The Relia-Bolt is designed to give you a margin of protection, to keep you in the field or the fight longer, but not to take the place of maintenance.
  11. How does the Relia-Bolt address the other known issues with the standard bolt, such as the weakness of the lugs on either side of the extractor channel or the narrow points on the cam pin hole?
    a. We’ve managed to keep our compatibility with the traditional parts group and yet address the weakness of these designs by upgrading the steel used to S7 tool steel. This is significantly stronger than the Carpenter 158 steel called out by the military and vastly superior to many materials used in civilian bolt production.
  12. What is S7 Tool Steel?
    a. The S-Type tool steel is specifically designed to resist the effects of shock at both high and low temperatures.
  13. What happens if I break your Relia-Bolt?
    a. Let us know about it, and we’ll make it right. Every Relia-Bolt is backed by our Lifetime Warranty
  14. Do you have any proof that this thing works?
    a. Yes, Sharps Relia-Bolt for AR/MSR rifles consecutively fired 7500 rounds of .223 ammunition during an independent firearm test without a jam.
  15.  What is the NP3 coating?
    a. NP3 is an electroless nickel-based finish that co-deposits sub-micron particles of polytetrafluoroethylene (commonly known as Teflon®). Commonly used in firearms components such as handgun slides, this coating is self-lubricating, and very corrosion resistant. Testing indicates that a 1 mil (0.001) coating will exceed a typical 250-hour salt spray test, and the need for cleaning is greatly reduced.