Colt Firearms Collector

 

 

1998 Colt 4 x 21 RFI Reticle Scope  (RARE)

 

Colt Optics (C-More) 4x21 RFI scope

2000 Colt 4 x 21D / 4 x 21 RFI  (RARE)

2000 Colt 4 x 21 Model D RFI scope, paperwork, lense covers, and Colt Optics box

Colt 4 x 21 Range Finding Illuminated Reticle Scope

The Colt 4x21 Illuminated Reticle scope was called the "Night Stalker". The illuminated reticle has 11 illumination settings and runs on a single 2032 button battery.  Battery life is 720 hours on the lowest illumination level and 120 hours at the brightest level.

The illuminated reticle is incredibly sharp and crisp. It can also be used without the illumination like a normal rifle scope. This scope was designed to be used with the NATO 5.56 round and has a built in Bullet Drop Compensator.  Zero the scope at 100m and the B.D.C. can be set for ranges from 100m - 500m with no hold over.

The reticle also has built in ranging from 200m to 1000m.  

Specs for the Colt 4x21 RFI Scope; Magnification: 4x

  • Objective: 21mm

  • FOV @100yrds: 29'

  • Eye Relief: 3"

  • Length: 7 3/4"

  • Weight: 15.2oz
 
Colt 1998 catalog showing scopes=3 
1998 Colt Catalog Cover
 
Colt 1998 catalog showing scopes-2Colt 1998 catalog showing scopes-1
 
The Colt Optics (C-More) 4 x 21 RFI was first shown in the1998 Colt Catalog.
Optic is shown in the middle of the right side panel mounted on AR-15 handle
 
Colt 4 x 21 Range Finding Illuminated Reticle Scope  Colt Optics (C-More) 4x21 RFI scope
1998 Colt marked 4 x 21 RFI scope and original box
 
Colt logo
 
Colt 421RFI label
421RFI label on box end
 
Colt 4 x 21 RFI Reticle Scope showing forward and rear turrets
 
spare battery storage space  side view of scope
 
Spare battery storage on left
 
Colt 4x21 side view
 
Colt Optics (C-More) 4x21 RFI scope turret  Colt Optics (C-More) 4x21 RFI scope turret -2
 
Colt Optics (C-More) 4x21 RFI scope optic end  Colt Optics (C-More) 4x21 RFI scope eye piece end
 
interior red illuminated cross-hairs
 
battery seated in scope 

battery removed from scope with caps

3 volt button batteries, one active, one spare

 

Cap removed from battery storage

Cap removed from battery storage

 

 

Colt Optics logo

 

The later 2000 Colt Optics brand by C-More is the model 'D' 4 x 21 Classic AR scope,

and appears to be identical to the earlier model

 

2000 Colt 4 x 21 Model D RFI scope and Colt Optics blue box

 

2000 Colt 4 x 21 Model D RFI scope with lense covers  2000 Colt 4 x 21 Model D RFI scope Burris lense covers up

Above shown with Burris flip-up lens protectors

 

2000 Colt 4 x 21 Model D RFI scope turret marked 5.56

Turret marked for 5.56mm cartridge data

 

2000 Colt 4 x 21 Model D RFI scope turret and battery storage    2000 Colt 4 x 21 Model D RFI scope turret and battery storage-2    2000 Colt 4 x 21 Model D RFI scope-1 turret

 

2000 Colt 4 x 21 Model D RFI scope 'Colt' label

 

4 x 21 Model 'D' Classic AR scope

 

2000 Colt 4 x 21 Model D RFI scope-1  2000 Colt 4 x 21 Model D RFI scope-2

 

Extensive paperwork provided with the 2000 4 x 21 RFI Model 'D'

 

Colt 4 x 21 RFI battery instructions

Battery examples and notes

 

Colt 4 x 21 RFI instructions  Colt 4 x 21 RFI instructions-2

Instructions

 

Colt Optics C-more 4 x 21 RFI instructions  Colt Optics C-more 4 x 21 RFI instructions-2

Colt Optics C-more 4 x 21 RFI instructions-3  Colt Optics C-more 4 x 21 RFI instructions-4

Colt Optics C-more 4 x 21 RFI instructions-5  Colt Optics C-more 4 x 21 RFI instructions-6

Colt Optics C-more 4 x 21 RFI instructions-7  Colt Optics C-more 4 x 21 RFI instructions-8

 

 
Below are Colt 4 x 20, 4 x 21, and 4 x 21 RFI scopes for size comparison
 
Colt 4 x 20, 4 x 21, and 4 x 21 RFI scopes for comparison -1  Colt 4 x 20, 4 x 21, and 4 x 21 RFI scopes for comparison -2
 

4 x 21 RFI

4 x 21

4 x 20

4 x 21 RFI

4 x 21

4 x 20
   

Research: Tracking down the genetics and origins of the 4x21 scope

A 4x21 was listed and sold on GunsAmerica website in 2011: The description of the 4x21 refers to the scope as being a  'Combat Military Ordinance Elite (CMO) Illuminated Reticle Night Stalker 4x21'
2011 Night Force scope

RFI article with photo

Before the advent of the flat top AR's. mounting a scope meant fastening it to the carry handle. One company came up with a solution.  They were manufactured by Hakko in Japan (now Japan Optics) and imported under the names Colt, C-More and Combat Military Ordnance. A few were imported under the Hakko name and sold by Accusport.

night stalker image  night stalker image with turrets

Specifically designed for use with carry handle AR15’s, but can also be used on an A3 receiver using the dovetail mount

  • IR BDC Reticle with 1 to 11 brightness adjustment

  • Battery life:720hrs (1) 120hrs (11) (1xCR2032)

  • BDC for 5.56 - Built in ranging from 200-1000M

  • Made in Japan
Mag. Object. FOV @100yds Exit Pupil Eye Relief Lenses Click @100yds Len. Wt.
4x 21mm 29 ft 5mm 3" 11 1/2" 7 3/4" 15.2 oz.


Obviously a Japanese company made both the 'C.M.O.' and 'Colt' branded 4x21 scopes

Tracking down the existence of Colt Optics

Colt Optics had the same address as C-More Systems in Manassas, Virginia.  The users manual in the background of this image below clearly shows Colt Optics in Manassas, Va. as their address and the optic with the manual is the 4x21 RFI scope.

Vertu Corporation, d/b/a C-MORE Systems, is an American manufacturer of firearms and firearm accessories. Vertu was established in Manassas, Virginia in 1993 and the C-MORE Competition name was established in 1999.  Their primary products are red dot sights, marketed as being for M1911 pistols, Glock pistols, and AR-15s.  Wikipedia

proof of Colt marked box for 4 x 21 RFI scope

Proof Colt 4x21 RFI scope was sold by a Colt division called Colt Optics and made in Japan. 

Proof of the existence of Colt Optics from a discussion about another (not the 4x21) scope by an employee at C-More Systems:

"These were demo scopes for the military. It is a C-More Systems scope branded by Colt Optical."

 

For the best experience, please view this Colt website

with a format larger than a cell phone

 

 

This non-commercial Colt reference website contains aggregated research notes & images from my personal Colt collection. I occasionally use openly posted information on the internet which is used here under the Fair Use doctrine for educational purposes. The information displayed is not in anyway meant to infringe on copyrighted material ....