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.
|Gun Model||HK 91, HK G3, PTR91|
|Manufacture Status||Original Item|
|Returns Accepted||Yes - Must Not Be Modified Or Visibly Used|
These rollers came exactly as pictured, very happy with them. These are some great spare parts to keep around.
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?
These rollers look great and work well for my spare parts kit.
bought 2 sets never know when you will need spare parts
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.