$750.00

300 blk Aero Lower, 9” Diamondback Upper

  • Phone Number: Click to view
  • Condition: Like New
  • Listing Type: Individual
  • City: West Valley City
  • State: Utah
  • Zip/Postal Code: 84119
  • Local County (e.g., Summit County): Salt Lake
  • Make/Brand: Aero Precision/ Diamondback
  • Model: X15
  • Caliber: 300 aac
  • Terms: Must agree to terms
  • Listed: August 22, 2026 5:51 am
  • Expires: 18 days, 5 hours

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IMG_5058
IMG_5057IMG_5060IMG_5061Screenshot 2026-08-20 at 7.11.06 AM

Listing Type: Individual

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Description

I have a 300 black out pistol. Aero precision lower with aero precision internals on the lower, diamondback 9” upper. Standard MilSpec BCG. Magpul accessories, vector optics red dot multi reticle green/red

Sighted in to 170 yards*

I built the lower my self from a virgin stripped aero lower so is considered a pistol and not an SBR

SB tactical brace

Shoots supers already and gassed and ready for a threaded muzzle and can. Let me know if you have any questions.

I have ran about 300 rds of super and 100 of subs

  

Listing ID: 67869c3cc4308156
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