I used these to fix the bolt gap on my PTR 91. The +2 rollers took the gap from .009' to .014"
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Design: 5
Kvalitet: 5
Värde för pengarna: 5
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RCM Rollers, + & - Sizes
RCM US-made locking rollers are available in both plus and minus sizes, making them the ideal choice for adjusting bolt gaps. These rollers are the top-tier locking rollers on the market, delivering unbeatable performance and reliability.
Compatible With:
MP5, MP5K
HK91, G3, PTR
HK33, HK53, HK93
Cetme, C308
Clones & other HK style roller lock firearms
Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head.
An easy way to remember the size you need to order - plus-size rollers increase the bolt gap and minus-sized rollers decrease the bolt gap.
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Good ,,,...........................................
Leverans: 5
Design: 5
Kvalitet: 5
Värde för pengarna: 5
Fast delivery!
Leverans: 5
Design: 5
Kvalitet: 5
Värde för pengarna: 5
Much needed part. Glad HK carries this item.
Leverans: 5
Design: 5
Kvalitet: 5
Värde för pengarna: 5
Exactly what I needed and price was right.
Leverans: 5
Design: 5
Kvalitet: 5
Värde för pengarna: 5
Beautiful
Leverans: 5
Design: 5
Kvalitet: 5
Värde för pengarna: 5
This was supposed to be an 8.4mm roller. Ordered two. Both are undersized and measured at about 8mm. Waste of my time. At least mic these things b4 you sell them. If it mics at 8mm sell the darn things in the 8mm category !
Leverans: 5
Design: 1
Kvalitet: 1
Värde för pengarna: 1
I had an old CETME that I bought 20 years ago and never used. After retirement, I started getting into small projects and discovered "bolt gap." The gap on my CETME was non-existent. After some research, I decided to change the rollers to a +6. HKParts had them in stock and shipped them quickly. After watching a few videos, the old for new roller swap was easy. I plan on using HKParts in the future.
Leverans: 5
Design: 5
Kvalitet: 5
Värde för pengarna: 5
Price is fair.
Leverans: 5
Design: 5
Kvalitet: 5
Värde för pengarna: 5
They were just what was needed to bring an HK gun into spec.
Leverans: 4
Kvalitet: 5
Värde för pengarna: 5