Compatibility

Compatibility information and installation notes for a wide range of models.

Will a PolarStar HPA conversion fit my rifle?

It can be frustrating to purchase upgrades only to find out that they don't fit your particular rifle. To make things easier we have compiled a database of information on compatibility of the various PolarStar HPA conversions into a wide range of models.


What HPA system do I choose?

Gearbox Version - The first step in selecting an HPA conversion kit is to determine which gearbox "version" your AEG uses. Over the years, AEG manufacturers have created various gearbox versions suited to the shapes of different real firearms. In the case of F1 or JACK the gearbox version will determine what switchboard model will be required to interface with the trigger and selector components. Since the Fusion Engine replaces the entire gearbox the "version" will determine which Fusion Engine model can fit into the replica.

Nozzle Type - It is important to know whether the nozzle of the AEG is centered in the cylinder (V2, V3, M249, etc..) or if it is offset vertically (M14, P90, PDR-C). This will determine which HPA systems are compatible with your AEG. At this time, only F1 supports AEGs with offset nozzles.


I don't see my gun listed in the table.

In many cases a replica of the same brand and product line (VFC ES Series, G&G CM Series, etc..) will use the same internal components and compatibility for all models in the series will be the same. Generally, compatibility will be the same for replicas of the same model even if they are from different manufacturers as long as they use the same gearbox version. For example, the Version 2 / M4 kit is compatible with almost all M4 replicas with very few exceptions.

If you do not see your replica (or a similar model) in the database there may already be a compatible "Standard Nozzle" which will work. Please see the Standard Nozzle Chart for the system you are interested in (F1/JACK/FE) to calculate the recommended nozzle length for your replica and to check if the nozzle length is already available. If it is not, we will gladly machine a custom nozzle for you.


Elite Force
HK417
1 (0.857)
1 (0.827)
N/A
Classic Army
KAC LMG
11 (0.777)
11 (0.747)
N/A
Echo 1
M240B
6 (0.925)
6 (0.894)
Classic Army
MG
3 (0.840)
3 (0.810)
3
A&K
MG
14 (1.419)
14 (1.389)
Echo 1
MG
1 (0.856)
1 (0.826)
PTS
PDRC
O-3 (0.633)
N/A (0.603)
N/A
Elite Force
PROP
O-4 (0.848)
N/A (0.818)
N/A
Elite Force
PROP
9 (0.907)
9 (0.877)
N/A
G&G
V2
1 (0.857)
1 (0.827)
1
G&G
V2
1 (0.857)
1 (0.827)
1
VFC
V2
1 (0.856)
1 (0.825)
1
A&K
V2
13 (1.377)
13 (1.346)
G&P
V2
2 (0.885)
2 (0.855)
VFC
V2
8 (1.538)
8 (1.507)
Classic Army
V2
7 (1.168)
7 (1.137)
G&G
V2
4 (1.481)
4 (1.450)
4
G&G
V2
18 (0.826)
18 (0.795)
Echo 1
V2
2 (0.893)
2 (0.862)
A&K
V2 LONG
5 (0.994)
5 (0.964)
5
King Arms
V3
6 (0.934)
6 (0.904)
G&G
V3
2 (0.899)
2 (0.869)
Real Sword
V3
9 (0.907)
9 (0.877)
E&L
V3
6 (0.929)
6 (0.899)
LCT
V3
12 (0.866)
12 (0.836)
Classic Army
V3
17 (1.034)
17 (1.004)
Classic Army
V3
20 (1.057)
20 (1.026)
ASG
V3
14 (1.437)
14 (1.406)
N/A
Elite Force
V3 MOD
10 (1.516)
10 (1.486)
N/A
Elite Force
V3 MOD
10 (1.517)
10 (1.486)
N/A
Elite Force
V3 MOD
15 (1.085)
15 (1.054)
N/A
Elite Force
V3 MOD
15 (1.089)
15 (1.059)
N/A
Elite Force
V3 MOD
16 (1.071)
16 (1.041)
N/A
Echo 1
V3 OFF
O-2 (0.920)
N/A (0.890)
N/A
Classic Army
V6
O-2 (0.920)
N/A (0.890)
N/A
G&G
V7
O-1 (1.058)
N/A (1.027)
N/A
Echo 1
XCR
19 (1.257)
19 (1.226)

About Us

PolarStar Airsoft was formed in 2009 as a part of PolarStar Engineering & Machine with the goal of bringing our engineering experience and focus on quality to airsoft. Since then, PolarStar has made innovative airsoft products of the highest quality, designed and manufactured in the USA.

PolarStar products, including the patented Fusion Engine are designed by airsoft players, incorporating airsoft experience with the feedback of the commnity.

Latest News

PolarStar F1Posted 2016-05-13
HPA Speed TriggerPosted 2016-06-23

Address

PolarStar Airsoft
5 Garfield Way
Newark, DE 19713
P: (302) 449-4866