Close-up view of the bolt locking rollers for the G3's roller-delayed blowback mechanism

G3 Bolt Locking Rollers 2-pack

The G3, as you may know, is a semi-automatic rifle that utilizes a roller-delayed blowback system of operation. In general, blowback refers to any action that operates on the energy created by the movement of the cartridge as it is forced back into the bolt head by the expansion of gases that result from combustion in the chamber. In any firearm that employs roller-delayed blowback, the locking rollers are an integral component of the bolt. Locking rollers are small, cylindrical parts that serve to both hold the bolt in battery and release the bolt from battery.

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SKU
G3BLRP
  $4.95
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Description / G3 Bolt Locking Rollers 2-pack

The G3 bolt locking rollers are a component of the roller-delayed blowback device and located in the breech. They are original factory parts made in Germany by HK.

Spare parts are an important consideration when it comes to firearms. Like any machine, firearms rely on a series of parts to function properly, including any component of the bolt. If a part breaks or fails, a repair or replacement is necessary.

It is also important to consider availability. At this time, Keepshooting.com has a wealth of authentic, original factory parts from HK for the G3/HK91/PTR91. Not only are they readily available, but also they are cheap. Now is the time to take advantage.

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German Army Surplus

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Customer Reviews

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Top customer reviews

  1. Tim

    Verified Buyer

    Great spare parts to keep around 0 people found this helpful

    Overall Rating

    These rollers came exactly as pictured, very happy with them. These are some great spare parts to keep around.
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  2. Michael

    you'll need them 0 people found this helpful

    Overall Rating

    These do eventually wear down and thereby lose the ability to lock the bolt face snugly to the chamber. At some point it could cause a major malfunction. Who wants a loose head space?
    Was this review helpful?

  3. Jeff

    Verified Buyer

    Look New.. 0 people found this helpful

    Overall Rating

    These rollers look great and work well for my spare parts kit.
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  4. joshua

    Verified Buyer

    hk rollers great buy 0 people found this helpful

    Overall Rating

    bought 2 sets never know when you will need spare parts
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  5. Brian

    Verified Buyer

    Sweet deal on a hard to find item 0 people found this helpful

    Overall Rating

    Rollers are one of those items that take a lot of abuse, and are getting hard to come by. So if you shoot on a regular basis as I do, spare parts are a must. I measured these and they are exactly 8.00mm. Sweet deal for keeping that important bolt gap spacing right. Thanks Keepshooting PS lets see some roll pins for the rollers soon guys keep up the good work.
    Was this review helpful?
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