430109709_1W.jpg
430109709_1W.jpg
2 / 2
430109709_1W.jpg
430109709_1W.jpg
OFF

BROWNELLS BUNDLESBRN-601 5.56mm 20" Upper Receiver With Colt 4x21mm Scope

BRN-601 5.56mm 20" Upper Receiver With Colt 4x21mm Scope
Brownells #
430109709
MFR #
NONE
UPC
$1,248.99

Out of Stock

Add To Favorite

Add to existing list
Select a list

Or create new one:

List name
Can we ship this to you? (US only)
Specifications
Cartridge:
5.56x45 NATO
Hand:
Right
Attachment Type:
Direct Mount
Barrel Contour:
Lightweight
Finish:
Anodized
Twist:
1-12
Color:
Gray
Barrel Length:
20.00
Item Length (Inches):
31.000
Item Height (Inches):
4.000
Gas Block Diameter:
0.625 Inches
Item Width (Inches):
2.000
Material:
Aluminum
Gas System Length:
Rifle
Muzzle Device Diameter:
0.96
Muzzle Threads:
1/2"x28
Quantity:
1
Receiver Style:
Complete
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.

Guaranteed. Forever.®

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: 

  • Firearms
  • Ammunition
  • Modified 80% frames & receivers 
  • Gun powder
  • Primers
  • Liquids
  • Limited Quantity/Hazardous items
  • 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 BRN-601® Complete Upper Receiver is back!

Styled after the original Model 601, introduced in the late 1950s, the BRN-601® has distinct features, only found on those early AR-15 rifles. Starting at the muzzle, the "duckbill" flash hider is retained by a proper split washer of the proper size. The flash hider is attached to a lightweight 20 inch barrel, found on AR-15 variants through the M16A1. The 1-12 twist stabilizes 55gr and lighter projectiles extremely well, while the 20 inch barrel provides plenty of velocity. The front sight base is not F-marked, meaning the round, tapered front sight post is properly in line with the carry handle rear sight. Solid green triangle handguards closely emulate the original green painted handguards found on the 601. A flat slip ring anodized matte gray is at the end of the 5.56x45mm NATO barrel assembly.

The upper receiver matches the slip ring anodizing, in a beautiful matte gray. Mounted to the upper is a proper ejection port cover, with a flat external "bump" (not just an off the shelf A2). The triangle charging handle also has the same anodizing, giving the entire assembly a clean look. Inside, you'll find a chrome bolt carrier group quite similar to the original. It even has the solid firing pin retaining pin! These do have modern staked gas key screws and a modern firing pin (unlike the old large style firing pin). The front pivot pin hole is recessed to funciton with the 601 pivot pin. The A1 type rear sight assembly is right at home in the slickside upper receiver as well.

Key features of the BRN-601®:
  • Slickside upper receiver
  • Matte gray anodizing (not painted)
  • 20" 5.56x45mm NATO barrel with 1-12 twist & chrome bore
  • Chrome, slickside M16 bolt carrier group with 9310 bolt
  • Duckbill three prong flash hider



We actually tracked down the original company that manufactured the Colt® AR-15 optics of the 1970s and asked them to build a new one for us as close to the original as possible - right down the yellow inspection stickers. The Retro 4x Optic has updated technology under the hood, with modern lenses and construction. The result is a scope that looks just like the original but has optical clarity and performance that are head and shoulders above it.

  • Attaches to any standard AR-15/M16 carry handle
  • Fully Multicoated lenses are fog and waterproof
  • BDC click-adjustable elevation turret
  • Manufactured in Japan with high quality internals and lenses

The Retro 4x Carry Handle Optic sports a simple, intuitive fine duplex reticle, like the original, and an elevation turret with BDC (ballistic drop compensated) clicks that closely match modern .223/5.56 55gr and 62gr ammo. As its name indicates, the Retro 4x comes with an integral carry handle mount that easily attaches to most AR-15 carry handles - no tools required.

As with all products we sell, this scope is fully backed by our Forever Guarantee.

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

Please select a FFL Dealer

or
0 dealers near undefined
Distance:
10miles
arrow-down
5 miles
10 miles
25 miles
50 miles
100 miles
Sort by:
Nearest first
arrow-down
Nearest first
Farthest first
Dealer name from A--Z
Dealer name from Z--A
  • Pin in Brownells Featured Dealers

    Choosing a Brownells Featured Dealer is the fastest and easiest way to complete your purchase. Brownells Featured Dealers have agreed to perform FFL transfers on guns purchased online from Brownells. We have their necessary FFL information on file and your FFL order will ship directly to them once processed.

  • Pin in Standard Dealers

    Standard Dealers have not yet agreed to perform FFL transfers on guns purchased online from Brownells. If you choose a Standard Dealer, you are responsible for contacting that dealer and arranging for the dealer to submit a signed copy of an FFL and to give Brownells permission to ship the gun.

  • Pin in Not Available Dealers

    Not Available Dealers are dealers Brownells cannot ship guns to at this time. These dealers either do not meet our requirements for FFL transfers, or prefer to not perform transfers for guns purchased online from Brownells.

Switch view map
0 dealers near undefined

You May Also Like

Left Badge
Right BadgeOFF 
5 Stars

200

300

Customers Also Viewed

Left Badge
Right BadgeOFF 
5 Stars

200

300