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Questions & Answers
Are these barrels MPI inspected? Expert Answer

Yes, the Aero Precision AR15 20in 5.56 Complete Upper Receiver features a MPI and HPT 20" 5.56 NATO, Rifle Length, 1:7 Twist, 4150 Chrome Moly Vanadium barrel.

by Ethan, Gear Expert, November 14, 2022
Does this come with a bolt carrier group or charging handle? Expert Answer

The Aero Precision AR15 20in 5.56 Complete Upper Receiver does not include a BCG or charging handle.

by Ethan, Gear Expert, August 16, 2022
Customer Reviews
Helpful Negative Review
Not fired/ Inital impression by Tc, Verified Owner, November 5, 2022
The shipping speed was amazing, arrived in 2 days. Well packaged but there is many places where you can see dings and scuffs and scratches. About 5 in all, luckily for me I plan to have it for hard use but just consider that if you want a safe queen....
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5/16 found this helpful
Most Recent Reviews
At this price, even at the sale price, should come with a bolt and charging handle. Longer barrel is better for distance shooting or hunting. Comes with removable rear sight/ carry handle, so it’s ready to shoot. At this price, should com...
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1/10 found this helpful
Most Recent Reviews
Serv Rifle competitor Gun club VP by Gun club VP, Verified Owner, July 19, 2024
This upper shoots with the consistent accuracy I hoped for.
Most Recent Reviews
Solid budget option by Winston, Verified Owner, April 12, 2024
Enjoying the A2 vibes. Sights were accurate out of the box. Might consider the 16" upper as well.
Most Recent Reviews
High end performance at reasonable price by Todd Brown, Verified Owner, March 7, 2024
This is my 4th Aero upper and like the others it is a high quality barrel. Accuracy if fantastic. Fit and Finish perfect. The value of this piece is amazing.
Most Recent Reviews
Quality finish and assembly, great price. by AmericanEagle, Verified Owner, November 9, 2023
Note: not yet fully completed, have a few more parts to buy. Not fired yet. So far, close examination shows no flaws in production and assembly of upper unit. Goal: recreate an A1 / A2 full length rifle. Everything seems to be coming together quite w...
Read More...
Read All 9 Reviews
Caliber:
5.56x45mm NATO
Overall Length:
30 in
Barrel Length:
20 in
Barrel Profile:
Government
Gas System Length:
Rifle Length
Barrel Twist Rate:
1-7
Muzzle Device:
A2 Flash Hider
Finish:
Anodized
Color:
Black
Gun Model:
AR-15
Fabric/Material:
4150 Chrome Moly Vanadium
Gas Block Journal Size-Diameter:
.750 in
Handguard Length:
12 in
Gun Rail:
Picatinny
Gun Make:
AR Platform
Weight:
66.25 oz, 70 oz
Magazine Included:
No
Condition:
New
Included Accessories:
A2 Detachable Carry Handle, None
Country of Origin:
USA
Threads per Inch:
1/2x28

Code: 29D-UFH-YM113K-APAR505611

MPN: APAR505611

UPC: 815421022285

Product No Longer Available

Product Info for Aero Precision AR15 20in 5.56 Complete Upper Receiver with Flash Hider with Pinned FSB & A2 Handguard

This AR15 Complete Upper is the same upper receiver used in our AERO M16A4 Special Edition Complete Rifle and features a 20in 5.56 Barrel w/ Pinned FSB, A2 Handguard and A2 Detachable Carry Handle.image

Features of Aero Precision AR15 20in 5.56 Complete Upper Receiver with Flash Hider with Pinned FSB & A2 Handguard

  • Upper: Standard M4 Upper Receiver
  • Barrel: 20in 5.56 NATO, Rifle Length, 1:7 Twist, 4150 Chrome Moly Vanadium, QPQ corrosion resistant finish
  • Sights: A2 Detachable Carry Handle and A2 Front Sight Block w/ Bayonet Lug
  • Handguard: A2 Style Handguard, Rifle Length
  • Gas System: Rifle Length Gas System
  • Muzzle Device: Standard A2 Flash Hider
  • This complete upper does not include a BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tab

Package Contents:

  • Aero Precision AR15 20in 5.56 Complete Upper Receiver with Flash Hider with Pinned FSB & A2 Handguard

Gun Parts and Accessories

130 / 30
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Gunsmithing Tools & Accessories

116 / 16
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Gun Triggers

115 / 15
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Magazine and Accessories

120 / 20
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Gun Stocks

118 / 18
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Gun Sights

119 / 19
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Mounts, Rings and Accessories

119 / 19
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Aero Precision AR15 20in 5.56 Complete Upper Receiver with Flash Hider with Pinned FSB & A2 Handguard Unavailable & Discontinued Models

List of Unorderable Models

  • Aero Precision AR15 Complete Upper Receiver, 20in 5.56 Rifle Length Barrel ,w/ Pinned Front Sight Base & A2 Handguard, Black, APAR505611 , MPN: APAR505611 , UPC: 815421022285 , Code: 29D-UFH-YM113K-APAR505611
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Last updated 2026-06-23 UTC.