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CSI S.T.A.R. XR-5 FG-1503 Advanced Battle Rifle (Color: Grey)

ID: 68297 (AEG-AE-FG-1503G)
4.3 stars, based on 12 reviews
CSI S.T.A.R. XR-5 FG-1503 Advanced Battle Rifle (Color: Grey)
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Optic not included, prototype shown, slight variations may be seen in production model


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*Optic not included, prototype shown, slight variations may be seen in production model

CSI Full Size Polymer Body XR-5 Advanced Main Battle Rifle (Color: Grey)

Everyone has an M4 or an M4 variant. Airsofting has become a sea of AR style rifles, an ocean of railed handguards, AR receivers and a slim selection of stocks. Break free from the sea of grey, boring rifles. Move into the 21st century and pick up a CSI XR-5 Advanced Main Battle Rifle. The XR-5 is unlike any other rifle currently on the market today. Built around the traditionally durable version 2 gearbox, the XR-5s relation to the M4 ends there. The XR-5 features a futuristic injection molded polymer body, molded with the ergonomics of the user in mind. The fire controls are similar to the favored M4 rifle ensuring that there is little learning curve when transition from your old battle rifle to the XR-5 Advanced Main Battle Rifle. To top it off the XR-5 features top, bottom and side accessory rails for mounting all 20mm accessories such as vetrical grips, weapon lights or grenade launchers.


  • Injection molded polymer body
  • Integrated top rail provides a stable and reliable platform for optics or other accessories
  • Lower 20mm accessory rail provides a mounting capability for vertical grips, weapon lights or grenade launchers
  • Side rails provide additional mounting space
  • Drop free magazine
  • Full metal version 2 gearbox provides the end user with easy ability to upgrade internal components
  • Compatible with most popular M4/M16 type magazines
  • Front and rear flip up sights
  • Safe/Semi/Full-auto fire capability
Length: 790mm-870mm Adjustable
Weight: 7.75 LBs
Inner Barrel: 363mm
Magazine Capacity: 200 rd Hi-Capacity. Works with Matrix, G&G, Tokyo Marui and other compatible M4 / M16 Series Airsoft AEG Magazines
Muzzle Velocity: 350~370 FPS (Measured with 0.20g BBs)
Thread Direction: 14mm Negative
Gearbox: Ver 2 Full Metal, Fully Upgradeable
Motor: Long Type
Fire Modes: Semi/Full-Auto, Safety
Battery: 9.6v Small Butterfly Type recommended (Battery not included. Wired to front with small Tamiya connector)
Hopup: Yes, Adjustable
Package Includes: Gun, Magazine, Manual

Manufacturer: CSI

FPS Range: 350-370

California residents click here for Proposition 65 warning

12 Customer Reviews

(Write a review)

by Joshua D. on 07/30/2018
"Purchased as a starter for my son and now is my primary.

This gun has some heft! doesn't sound like a big deal, but after carrying it around for six or seven hours it might lead to some fatigue.

Me I don't mind it and prefer something with a little more weight to it. I currently have a front hand grip and red dot attached. Looks and handles perfectly.

being able to "gator" the weapon to put the battery in is a silent treat. My son is running an M4A1 and every now and again we are on the hunt in the tight quarters of the M4A1 battery compartment.

I have the 150 round mag and the 300 round. Not only does the mag keep with the cool lines of this gun, but they are easily identifiable on the field. No worry about someone grabbing my mag on the field.

for a unique conversation piece and a solid starter weapon I highly recommend this. Eventually i am going to be playing with the springs and other internals to see just what she is capable of.
by Jeffrey C. on 08/12/2017
"this is a very nice gun, it has a lot of hex screws holding the body together and i had to take the whole thing apart to change the inner barrel and hop up. both stock hop up and inner barel are metal but I put in my prowin hopup (the blue one) and a angel customes sus304 6.01mm tightbore barrel that is 494mm long. with the stock fully retracted, its shorter than my socom X47. and i had to put a barrel extension and a mock suppressor on the XR-5 to cover the angel customes inner barrel. and it is shorter than my X47 which the X47 has no barrel extention at all, just a krytac flash hider (the 5 dollar one). the XR-5 is great for a Designated Battle Rifle for both CQB and LONG RANG. im just happy with this product, the XR-5 i have is a literal cqb sniper that isnt bulpup. 494mm is a hella long inner barrel that is also 6.01mm in diameter so its MEGA accurate and has amazing distance and groupings. its a good affordable gun even if you dont want to change the internals so i recommend this to any one who wants a new tech project (like me), or a straight up beginners gun for airsofters who are looking into something fixable and fully upgrade able internally.
by Alessio N. on 05/14/2017
"Well let me say first off that the rifle works well and the range is excellent. The exterior is polymer but it is so sturdy that breaking it would be very diffucult. The only issue I have with this "futuristic m4" is that it can't hold any high cap mags. I have tested all kinds of m4 high cap mags, but it seems that they will not clip in and a mid cap or lower is required.

.Very sleek
.compatible with many m4 mags
.Efficent fps

.No high cap compatability
.iron sights block view of target

I would consider getting a cheap $10 red dot for this gun, and get the $5 m4 mags that are on here.

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