Every part checked against this replica, grouped by category. The tag on each row says how well the answer is backed. Use the evidence filter to see only fits a maker or retailer has named.

Steel Barrel Nut Adapter (GM0456) for MWSFitsRetailer
Guns Modify
Lets AEG-style outer barrels and handguards fit.

High Speed Bolt Carrier for Tokyo Marui M4 MWS GBBR - Aero StyleFitsSpecs
Angry Gun

Helios x Noveske x M4/N4 MWS Series - G101 Complete Bolt SetFitsSpecs
Double Eagle

Titanium Zet Plate MWSFitsSpecs
Bavtac

Enhanced Buffer Recoil Spring with Buffer Spacer for MWSFitsRetailer
T8

Super Recoil Buffer Kit for MARUI M4 MWS GBB - Hard Kick Ver.FitsSpecs
Angry Gun

MWS GBBR Aluminium Buffer - GoldFitsSpecs
G&P

Ambi Charging Handle for Marui MWSFitsSpecs
Angry Gun


Stainless Gas Block & Tube for MWS - BlackFitsSpecs
Guns Modify

MWS Steel Parts Combo SetFitsRetailer
T8

Carbon Fibre M-LOK Handguard for MWS (5.5" / 7" / 9.5")FitsRetailer
Revanchist

CGS NSR9 M-LOK Handguard Kit for MWSFitsRetailer
CYMA
Kit with outer barrel and gas block. Also sold in 7" and 13.5".

Strike Hop-Up Arm for MWSFitsRetailer
Laylax



CNC Aluminium Titan Nub for the Tokyo Marui MWS SeriesFitsSpecs
Jaeger Precision



Hop-Up System Chamber and Bucking Kit for MWSFitsRetailer
T.N.T.

Kraken MWS Hop-Up Chamber KitFitsRetailer
Stalker

M4T Hop-Up Chamber for MWSFitsRetailer
Maxx
Retailer lists it for the TM MWS M4 and the N4 Gen3 MWS clones.

Model CNC Aluminum M4T One Hopup Chamber for Tokyo Marui MWS M4 Gas Blowback RiflesFitsRetailer
Maxx
Listed for the Tokyo Marui MWS M4 and the Double Eagle N4 Gen3. Not for CYMA-based N4s.

Model Hop-Up and Adjuster Set M4T for MWS M4 GBBFitsRetailer
Maxx
Listed for the Tokyo Marui MWS M4 and the Double Eagle N4 Gen3. Not for CYMA-based N4s.


V2 MWS Hop Up System for Marui MWS GBB Series ( Chamber Base and Adjuster Set ) ( CNC T651 AluminFitsSpecs
C&C TAC

Nine Ball M4A1 MWS inner barrel 250mm (6.03mm)FitsMaker
Laylax
Listed by Laylax as compatible with the Tokyo Marui GBB M4A1 MWS.

250mm Inner Barrel with Hop-Up Chamber Set (60°) for MWSFitsRetailer
Angry Gun
Match the length to the outer barrel.

370mm Inner Barrel with Hop-Up Chamber Set (60°) for MWSFitsRetailer
Angry Gun
Long barrel: only suits a long outer barrel.

Prometheus 6.03mm EG Inner Barrel For TM M4A1 MWS - 370mmFitsSpecs
Laylax
M4A1 MWS spare magazine (35 rounds)FitsMaker
Tokyo Marui

Tech - 35rd Gas Magazine for MWS GBBRFitsRetailer
Modify
A retailer lists these four as tested. Not confirmed for the Double Eagle N4, where a buyer reported a wobbly fit.

GBB Type 89 20-round spare short magazineFitsCommunity
Tokyo Marui
Reported to work in the MWS-system rifles. No source linked.

GBB Type 89 series spare magazineFitsCommunity
Tokyo Marui
Reported to work in the MWS-system rifles. No source linked.

Gas M4A1 series 20-round short magazineFitsSpecs
Tokyo Marui

35rd MWS GBBR Magazine V4.0 - BlackFitsSpecs
Guns Modify
Pro Silencer (Knights type)FitsSpecs
Tokyo Marui
Pro Silencer (short type)FitsSpecs
Tokyo Marui

Enhanced Nozzle for MWSFitsRetailer
T8

Enhanced Nozzle Set V3.5 For Tokyo Marui MWSFitsSpecs
Guns Modify

10.5" One-Piece Steel Outer Barrel (GM0467) for MWSFitsRetailer
Guns Modify
Needs an AEG barrel nut (see GM0456 adapter).



M653-Style Steel 14.5" Outer Barrel Front Set for MWSFitsRetailer
Angry Gun

BCM Style 11.5" Outer Barrel Set Tokyo Marui M4 MWS GBBR - BlackFitsSpecs
Angry Gun

Tokyo Marui MWS GBBR Outer Barrel - Set of 3FitsSpecs
G&P

Steel Outer Barrel Nut Spacer for Marui MWSFitsSpecs
Angry Gun

Easi Nozzle Spring for Tokyo Marui MWS & MTR16 SeriesFitsSpecs
Jaeger Precision

MWS 140% Nozzle Return SpringFitsSpecs
Bavtac

CNC Adjustable Trigger Box (A) for TM M4A1 MWSFitsRetailer
G&P

EVO CNC Trigger Box for MWSFitsRetailer
Guns Modify

EVO Steel CNC Drop-in Trigger box for MWS systemFitsSpecs
Guns Modify

Crimson NPAS for MWS TM / DE / SalvoFitsSpecs
Waldo Dynamics

MWS NPAS Adjustable ValveFitsSpecs
Jaeger Precision