Brownells 75th Anniversary - A Shooting Heritage

An Experimental Carbine

The Brownells Model BRN-605® Rifle replicates the look of the experimental-only, never-issued Colt 605, the first attempt at making an AR-style carbine.

The Model 601 was the very first AR-15 adopted by the US Military, seeing service with the United States Air Force & other units in Southeast Asia early in the 1960s. Featuring classic green furniture and slick side receivers, the 601 is one of the sleekest models ever developed, and represents almost a true iteration of Eugene Stoner’s original design philosophy.

Progression of the 605.

Model: BRN-605® Overview

The new Brownells BRN-605® is built from completely new production components, no surplus parts. The rifle also features a 3 prong flash hider and chrome bolt carrier group.

  • XM16E1 Style Lower Receiver with partial "magazine fence"
  • XM16E1 Upper Receiver
  • Matte gray anodizing (not painted)
  • 15.5" 5.56x45mm NATO Barrel with 1-12" twist & chrome bore
  • Chrome, Bolt Carrier Group with forward assist serrations
  • Pinned & Welded 3-Prong Flash Hider, no bayonet lug
  • Black buttstock, pistol grip & handguard assembly
  • Includes:
    • One (1) 20rd Magazine
    • One (1) GI Operations Manual
    • One (1) Chamber Flag

Own the classic Model 605 today with the BRN-605® rifle from Brownells.

Rifle Details:

Action Type:

Direct Impingement

Barrel Length:


Twist Rate:



5.56 mm NATO


Anodized Matte Gray

Front Sight:




Magazine Included:

20rd Magazine


Duckbill Flash Hider

Rear Sight:


Stock Material:



6lbs 11oz

Get Yours Now

Model: BRN-605® Details

Lower Receiver: The BRN-605® utilizes the original XM16E1 profile (partial fence), matte gray anodizing, Nodak Spud 7075-T6 aluminum forging, machined by Aero Precision

Upper Receiver: Original style profile with forward assist, no shell deflector, matte gray anodizing, Nodak Spud 7075-T6 aluminum forging, machined by Brownells

Note: The lower features a faux buffer tube retaining roll pin

Barrel: 15.5" M16 Lightweight Profile, Chrome Lined Bore & Chamber, 1-12 twist, button rifled, 4150 chrome moly steel, stress relieved, 5.56x45mm NATO chamber, 1/2-28 muzzle threads, magnetic particle inspected, test fired with 10 rounds of LC ammunition, with standard height front sight base installed

Handguard: Brownells Retro Black Triangle with aluminum heatshields

Bolt Carrier Group: M16 Chrome Assembly, 9310 tool steel bolt, magnetic particle inspected & test fired with 10 rounds of LC ammunition, 8620 steel carrier, gas key screws properly torqued & staked

Charging Handle: Includes model correct modern charging handle

Flash Hider: Original Style 3 Prong Flash Hider installed with proper split washer

Sights: M16A1 Rear Sight Assembly & A1 Front Sight Post

Pistol Grip: Brownells M16A1 Style Grip

Buttstock: Brownells M16A1 Black Type “D” with sling swivel

Magazine: Brownells 1x 20 Round aluminum Magazine

Manual: Safety Manual + “The M16A1 Rifle: Operation & Preventative Maintenance” Army Manual - The U.S. Army teamed up with cartoonist and graphic artist Will Eisner to produce teaching tools for U.S. soldiers in a medium that they could easily understand. The M16A1 Rifle: Operation and Preventive Maintenance, first printed in 1969, features a female narrator who instructs GIs on the proper care of their M16A1 rifles.

Model: BRN-605® Aditional Images

BRN-605 Forward Right BRN-605 Backward Left BRN-605 Ejection Side BRN-605 Back Side BRN-605 Flash Hider BRN-605 Buttstock Type D BRN-605 Buttstock BRN-605 Ejection Side Detail BRN-605 Pistol Grip Detail BRN-605 Upper Reciever No Forward Assist BRN-605 Retro Charging Handle BRN-605 Back Side BRN-605 Non-Retained Takedown Pin BRN-605 Slab Side Lower BRN-605 Handguard BRN-605 Handguard Heatshield BRN-605 Magazine Release Detail BRN-605 Retro Flat Slip Ring BRN-605 Rear Sight Detail BRN-605 Front Sight Detail

Click Image Above To Open Expanded View

BRN-601 Forward Right Thumbnail
BRN-601 Backward Left Thumbnail
BRN-601 Ejection Side Thumbnail
BRN-601 Back Side Thumbnail
BRN-601 Flash Hider Thumbnail
BRN-601 Buttstock Type D Thumbnail
BRN-601 Buttstock Thumbnail
BRN-601 Ejection Side Detail Thumbnail
BRN-601 Pistol Grip Detail Thumbnail
BRN-601 Upper Reciever No Forward Assist Thumbnail
BRN-601 Retro Charging Handle Thumbnail
BRN-601 Back Side Thumbnail
BRN-601 Non-Retained Takedown Pin Thumbnail
BRN-601 Slab Side Lower Thumbnail
BRN-601 Handguard Thumbnail
BRN-601 Barrel Nut Detail Thumbnail
BRN-601 Magazine Release Detail Thumbnail
BRN-601 Retro Flat Slip Ring Thumbnail
BRN-601 Rear Sight Detail Thumbnail
BRN-601 Front Sight Detail Thumbnail
Get Yours Now