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BROWNELLSBRN16A2 20" Upper Receiver

10 Reviews
|
Summary
BRN16A2 20" Upper Receiver
Brownells #
430105694
MFR #
None
UPC
050806500693
$799.00

In stock

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Specifications
Attachment Type:
Direct Mount
Barrel Contour:
Government
Cartridge:
5.56x45 NATO
Barrel Length:
20.00
Gas System Length:
Rifle
Item Weight (lbs):
4.875
Kit:
Full
Color:
Black
Item Width (Inches):
2.500
Muzzle Device Diameter:
0.96
Material:
Aluminum
Finish:
Anodized
Model Number:
M16A2
Receiver Style:
Complete
Muzzle Threads:
1/2"x28
Gas Block Diameter:
0.750 Inches
Quantity:
1
Hand:
Right
Twist:
1-7
Item Height (Inches):
4.000
Item Length (Inches):
31.000
Restriction
Restricted Part:
Yes
Can we ship this to you? (US only)
Description

Made In The U.S.A.

Products marked with the Stars and Stripes are proudly made in the U.S.A.

Many customers have asked us to show which products are made in America, and we’ve begun working with our vendors to identify them. This information, however, is not available for all items nor does it imply that foreign merchandise is of lesser quality. We will continue to gather this information to assist our customers in making informed buying decisions, and will keep our website current with the latest information.

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We make purchasing and returning products as simple as possible. If you buy a product from Brownells and decide you don’t need it, don’t want it, or just don’t like it, we’ll take it back any time… with a few exceptions

Exceptions include: 

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  • Products that are subject to pending or implemented restrictions due to Federal, State, or Local regulation/legislation

All other products are Guaranteed. Forever.® you can easily identify these products by the Guaranteed. Forever.® Icon.

Guaranteed. Forever.

Guaranteed. Forever.® return policy applies to the product’s original owner along with proof of purchase. Any items returned within 45 days of shipment are entitled to a refund. Any items returned after 45 days of shipment will be issued store credit in the form of a Brownells Gift Card. If a Brownells/Sinclair product was purchased through another retailer as a new product we will require proof of purchase to replace or refund.  (Refund will be issued as store credit in the form of a Brownells gift card.)  

The BRN16A2 features the correct components you're seeking in a M16A2 build.

The forged upper receiver itself is the classic M16A2 style, with the robust and incredibly adjustable A2 rear sight assembly.The elevation drum can be adjusted from 300 to 800 meters (zero at 25m for 300m). This upper receiver does not have M4 feed ramps, just like the original A2. The included bolt carrier group has a phosphate finish with chrome bore and gas key interior.

With the classic 20 inch Government profile 5.56x45mm NATO barrel, the BRN-16A2 has an instantly recognizable appearance. The 20 inch barrel has a chrome bore and chamber, with 1-7 twist, perfect for M855 62 grain or heavier bullets. The muzzle is capped by the great performing M16A2 flash hider.

The non-“F” Marked front sight base has the correct A2 square post, bayonet lug, sling swivel and triangle handguard cap. USGI barrel nut will accept many off the shelf handguards, making the upper future proof for upgrades. The included M16A2 style handguards feature the standard heat shield and replicate the look and feel of the original A2 handguards.



Key features of the BRN-16A2:

  • All new production, no surplus parts
  • M16A2 Upper Receiver
  • A2 USGI Rear Sight Assembly
  • 20" 5.56x45mm NATO barrel with 1-7 twist & chrome bore and chamber
  • Mil-spec bolt carrier group with phosphate exterior and chrome interior

Restricted Part
Please check with your state regulations for ownership of Restricted Parts. May require documentation.

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BRN16A2 5.56 20" COMPLETE UPPER RECEIVER Reviews
Rating Snapshot
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20%
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30%
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40%
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Overall Rating
3.3
10 Reviews
Review Summary
Customers have mixed feelings about the BRN16A2 5.56 upper receiver. While many appreciate the build quality and precision, concerns over loose handguards and issues with rear sights are common. Some reviewers note disappointing value for the price, particularly due to subpar handguard quality. Overall, it delivers good performance but with some significant flaws.
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10 Reviews
January 20, 2025
Feels like an A2 to me.
I don't understand the negative reviews.Mine feels pretty darn good.Everything is tight and smooth.Tight groups with cheap ammo.Nostalgic, which is why I bought it.I've ran it pretty hard and I have no reservations.They built it to be a hard use rifle.
MORE DETAILS
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Verified Purchase
December 13, 2023
Just what I wanted.
I am very happy with this receiver.I sighted it in today at 25 meters with M855 62 gr. ammunition.It shot very well and functioned perfectly.I only had to move the front sight 3 clicks and the rear sight 5 clicks to the right which leaves it just on the right edge of the center mark on the back of the receiver.Very good!The service was super fast too.
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Verified Purchase
August 17, 2024
The best A2 clone upper outside of niche shops or building your own.
Here goes a detailed review.Starting with the barrel.Barrel is marked as having been made by Luth-AR.The barrel is correct for the A2 apart from one small insignificant detail.All M16A2/A4 barrels have a very slight step down in the barrel profile just before the threads at the muzzle.This barrel does not.The barrel has no steps between the FSB and the muzzle threads.FN made button barrels have this same omission.The Front sight Base is indeed non-F marked and even measure correctly.H...Read more
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Verified Purchase
April 02, 2024
Scratches the Itch
I’ve been wanting to make a clone of the M16A2 for awhile.I never thought I’d feel nostalgia for an A2 as I hated humping it in Army basic and numerous field problems and I hated how inconvenient it was in my vehicle during the Invasion of Iraq.I thought I’d never look back after receiving my first M4, but here I am.I’ve shot maybe just fewer than 600 rounds through it in the past two months and have been exceptionally pleased with it.I was able to zero it in nine shots (a few clicks on th...Read more
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Verified Purchase
December 12, 2023
Accurate and reliable, but I have one complaint.
I zeroed this upper with M855.No malfunctions.Ejection was consistent and seems to be properly gassed.Accuracy was good.The front sight required only minor adjustment.My only negative, is that I had to move the rear sight noticeably to the left to get it to zero.Other than the rear sight being off center, I'm happy with the purchase.
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Customer Questions
Customer Questions
Show all
078000347
078000349
080001433
100015850
100019947
100026146
100043874
100043905
100075006
296000104
430102122
430103206
430105694
430107605
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Oldest
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13 Questions
C
C
Chase
December 25, 2024
It says the upper has m16 feed ramps but does the barrel extension have m16 feed ramps or m4 ramps?
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00
C
C
Customer careCompany Answer
December 26, 2024

It does not have M4 feed ramps.

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00
P
P
Paul
July 25, 2024
Will the brn m16a2 upper work with a ruger ac556 lower?
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11
K
K
kyleCompany Answer
July 26, 2024

no

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31
J
J
Jeremey
April 10, 2024
Does this upper use the same government profile barrel (AR-15 20in 5.56 A2 Barrel Group 1-7) offered under this product number Brownell's #430104610 / UPC 050806500563?
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10
K
K
kyleCompany Answer
April 11, 2024

yes

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50
P
P
Paul R
January 25, 2024
Will this fit a Colt AR-15A4 lower?
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12
C
C
Customer CareCompany Answer
January 31, 2024

Yes, it will fit any Colt or other brand that uses the small pin pivot pin.

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60
J
J
Jeremey
December 12, 2023
Will the stripped or assembled A2 upper receiver be available for purchase for M-16A2 carbine builds or early M-4 builds?
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21
C
C
Customer CareCompany Answer
December 21, 2023

There has been talk about it, but word yet.

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30
M
M
Mason
December 04, 2023
Is the barrel Phosphate or Nitride (QPQ)?
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10
K
K
Kasey FischCompany Answer
December 12, 2023

chome bore, phosphate exterior

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40
D
D
Donald S. Griffin
December 02, 2023
Is the finish on the barrel Black Oxide or is it Magnesium Phosphate Parkerized liked originals?
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21
C
C
Customer CareCompany Answer
December 08, 2023

It is parkerized.

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40
P
P
Phillip
November 30, 2023
would this be compatible with a Windham AR or a Bushmaster AR
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02
K
K
Kasey FischCompany Answer
December 05, 2023

Yes, it is.

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50
O
O
Orion
November 20, 2023
is the bolt made from C158 steel or 9310? are they MPI tested? what material is used on the extractor?
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00
K
K
kyleCompany Answer
November 21, 2023

9310 and yes its mp tested

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42
D
D
davis
November 19, 2023
What type of steel are the barrels made of on the BRN16A2 upper?
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20
K
K
Kasey FischCompany Answer
November 20, 2023

 4150 CMV

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70