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Custom 20" 5.56 Lightweight Retro Rifle Kit - Availability based on component inventory at the time of the order.

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Our Price: $620.00
Sorry we are currently sold out.
Item Number: RKCJSE20001
Manufacturer: JSE Surplus

Upgrade / Modification Options

* denotes required field

Upper Receiver*
Ejection Port Door
Forward Assist Options (Does Not Apply to Slick Side Upper Options)*
20" Barrel Options*
Flash Hiders, Comps, Brakes*
Sight Tower*
Bolt & Carrier Assembly*
Charging Handle/Latch Upgrade Options*
Retro Handguard, Stock, Grip Color Option*
Lower Parts Kit*

This is a Custom Complete Upper, ready to drop in and fire.

**If you do not make any changes you will receive item as pictured. Make your needed selections to upgrade this upper before you add it to your shopping cart.**

Custom 20" Retro Upper Build

  • Chamber - 5.56
  • Profile - Lightweight
  • Barrel Twist - 1x7 or 1x9 available
  • Barrel Thread - 1/2 x 28
  • Barrel Steel - Nitride/ Stainless Steel
  • Barrel Diameter: .625
  • Flash Hider - 3 Prong (defaulted Option)
  • Handguard - Rifle Length 2pc Triangle- Black (default)
  • Gas Block - N/A
  • Sight Tower- Non F Marked (default)
  • Upper Receiver - Forged A2 Upper Receiver (Choose your forward assist button style Round or Tear Drop)
  • Ejection Port Door - Standard Current Version (Default) (Choose to change to the retro version in the drop down options)
  • Bolt Carrier Group - Included
  • Charging Handle - Included (options available)
  • Lower Parts Kit - Included (options available)
  • Stock and Grip - Retro A1 stock body and grip (colors will match forearm color choice)
  • Stock Components - Buffer Tube, Buffer and Spring are included

Warranty: 1 year warranty against manufacturer defect.


***Ammunition Notification*** JSE Surplus test fires every custom upper to verify cycling. We do not guarantee cycling with all ammunition due to vast differences in the quality of ammunition. We will only warranty cycling with US made ammunition. We will not warranty cycling with imported, steel cased or reloaded rounds. Some of the non-warrantied ammo includes: Tula, Wolf and Perfecta.

Product Reviews

(2 Ratings, 1 Review) Average Rating:
STEPHEN MC GEE SR (Salina, KS) 6/18/2019 10:32 AM
this made a good looking gun as close as I remember them from 1972 brought back a lot of memory's shoots great the fit was great put it on a psa government lower it is one of my neatest guns out of 50, thanks guys for a great build