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Product Reviews

For the product: HK USC, UMP Barrel Roll Pin - German

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"Will order from again"

Howard Brown on 6/4/2012 11:46:47 AMVerified

Overall Product Rating:

Great people to deal with. Owner will personally respond to emails. Fast shipping!

"Barrel Pin"

Mati-O on 10/7/2009 5:09:46 PM

Overall Product Rating:

If you ever plan on changing a barrel have a extra one of these just in case. Tap slowly and softly use a flat nail as a pin punch or a 6mm punch. I don't think it matters what side you punch it out but I saw marks from the factory on the Left side. NOT ejection port side.So punch out from the right side.

"Parts order"

Daniel Batchelder on 1/19/2013 8:36:42 AMVerified

Overall Product Rating:

Great service from HKParts. I am very satisfied with their website, the automated follow-up after placing my order, the reasonable cost on shipping to me, and the speediness at which I received my parts.

"Its Great"

Lonnie on 6/26/2013 4:09:05 PM

Overall Product Rating:

It is what it is. It's new it came in the mail fast and its just what i needed for my USC/UMP


mike maney on 6/9/2012 4:09:05 PMVerified

Overall Product Rating:


"Nice Upgrade"

Eric Speiser on 9/26/2018 8:37:53 PMVerified

Order Fulfillment:

Desired Compatibility:

UMP Conversion / Omega

Product Quality:

Overall Product Rating:

Perfect for the Omega build

"brand new as described"

James OBrien on 3/2/2013 10:08:20 AMVerified

Overall Product Rating:

Not much to say, it is HK factory new, you need it to hold the USC, UMP barrel in.

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