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I assumed that it was a dedicated 9 mm upper that it would not have a forward assist it seems as though they used some surplus uppers 4 rifle cartridge and just built pistol caliber uppers still cool just not dedicated more like a Frankenstein
by
Joey C,
Verified Owner
from WI, United States
Written on December 3, 2025
Second trip out today with this upper. Has eaten everything 115gr I have fed it; on-line remans, reloads, new brass, steel & aluminum. Not as loud as I expected. I assume the blast forward device helps. Only downside so far is accuracy. My groups started opening up at 15 yds & by 25 yds were beyond 6 inches. I realize 9mm PCC’s are not tack drivers; but D@mn. ALOT OF FUN HOWEVER!
Pros:
FUN FACTOR A+++
Eats everything
Cons:
Accuracy is questionable
Best Used for:
Fun . Speed practice
Would recommend: Yes
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by
Sp33dy,
Verified Owner
from NH, United States
Written on April 2, 2025
Great upper receiver couldn’t pass on a deal when it went on sale. Watched videos and reviews how well Stern Defense 9mm holds up and I was very impressed how sustainable the barrel is. After receiving my upper, I test it at the range and I was at awe. The quality, the smoothness, and precision was worth it.
Would recommend: Yes
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by
jimbo,
from TX, United States
Written on February 12, 2021
Great to have and fun to shoot. Small light weight and versatile. Using if for multiple applications either hunting coyotes or training. I’m in love shooting it but since ammo is rare and hard to come by I haven’t had much play time lately.
Pros:
light but solid
Cons:
None
Would recommend: Yes
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