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Internal Upgrades & Performance

Upgrade your airsoft platform to its peak potential with the PTS Steel Shop Internal Upgrades Collection. We feature high-performance internal components engineered for consistency, range, and durability. Explore cutting-edge hop-up buckings, valves, and springs from MEC, alongside premium custom tuning components from CL Project Design specialized for CZ series pistols and Revolvers. From sharpening trigger response to maximizing gas efficiency and accuracy, find the precise parts needed to dominate the field.

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55 products

Airsoft OnlySave 15%MEC Stock Buffer for TM MWS AR-15/M4
MEC
Stock Buffer for Tokyo Marui MWS M4 Series Sale priceHK$136.00 Regular priceHK$160.00
E9 Enhanced Lower Receiver Control Set: Tactical Ergonomics for the Scorpion EVO
PTS EP Series
E9 Enhanced Lower Receiver Control Set: Tactical Ergonomics for the Scorpion EVO Sale priceHK$240.00
Airsoft OnlySold outSave 15%Mec enhanced tappet plate spring fix for standard v2 and v3 gearboxes
MEC
Enhanced Tappet Plate Spring — PTS Official Endorsed Reliability Sale priceHK$34.00 Regular priceHK$40.00
Airsoft OnlySteel Disconnector for KJ / ASG Shadow 2: Eliminating Hammer-Follow Liabilities with Monolithic Steel Disconnection Geometry
CL Project Design
Steel Disconnector for KJ / ASG Shadow 2: Eliminating Hammer-Follow Liabilities with Monolithic Steel Disconnection Geometry Sale priceHK$190.00
Airsoft OnlySave 15%Hop Up Rubber: The Ultimate Air-Seal and Accuracy Solution for GBBs
MEC
Hop Up Rubber: The Ultimate Air-Seal and Accuracy Solution for GBBs Sale priceHK$74.80 Regular priceHK$88.00
Airsoft OnlySave 15%M-Valve: High-Efficiency Performance Upgrade for GBB Systems
MEC
M-Valve: High-Efficiency Performance Upgrade for GBB Systems Sale priceHK$93.50 Regular priceHK$110.00
AEG EPM Replacement Part - Follower & Spring Set
PTS Replacement Parts
AEG EPM Replacement Part - Follower & Spring Set Sale priceHK$80.00
KWA LM4 GBBR Bolt Carrier Set
PTS Syndicate
KWA LM4 GBBR Bolt Carrier Set Sale priceHK$720.00
Airsoft OnlyASG Licensed 7075 Aircraft Aluminum CNC Frame for KJ Shadow 2: Overriding Casting Failures with a Monolithic 7075-T6 Aerospace Racing Backbone
CL Project Design
ASG Licensed 7075 Aircraft Aluminum CNC Frame for KJ Shadow 2: Overriding Casting Failures with a Monolithic 7075-T6 Aerospace Racing Backbone Sale priceHK$3,105.00
Color
AR-15 Billet Upper for PTS Mega Arms MKM AR-15 (GBBR)
PTS Mega Arms
AR-15 Billet Upper for PTS Mega Arms MKM AR-15 (GBBR) Sale priceHK$640.00
Optimized Match Outer Barrel for PTS Zev OZ9 Series
PTS ZEV
Optimized Match Outer Barrel for PTS Zev OZ9 Series Sale priceHK$360.00
Airsoft OnlyCompetition Steel Ambidextrous Safety Selector for KJ Works / ASG CZ Shadow 2
CL Project Design
Competition Steel Ambidextrous Safety Selector for KJ Works / ASG CZ Shadow 2 Sale priceHK$845.00
Color
Airsoft Only7075 Fixed Aluminum Threaded Outer Barrel for KJ Works / ASG CZ Shadow 27075 Fixed Aluminum Threaded Outer Barrel for KJ Works / ASG CZ Shadow 2 (11mm CW)
CL Project Design
7075 Fixed Aluminum Threaded Outer Barrel for KJ Works / ASG CZ Shadow 27075 Fixed Aluminum Threaded Outer Barrel for KJ Works / ASG CZ Shadow 2 (11mm CW) Sale priceHK$425.00
Color
Airsoft Only7075 Aircraft Aluminum CNC Competition Trigger for KJ / ASG Shadow 2: Eradicating Overtravel Liabilities with Monolithic 7075-T6 Hyper-Adjustable Linear Mechanics
CL Project Design
7075 Aircraft Aluminum CNC Competition Trigger for KJ / ASG Shadow 2: Eradicating Overtravel Liabilities with Monolithic 7075-T6 Hyper-Adjustable Linear Mechanics Sale priceHK$330.00
Color
Airsoft OnlySave 15%MEC, MEC Desire for Performance, Desire for Performance, MEC R-Type Piston Head For KWA TT-33 M9 M93R Umraex MP7 KWA, KWA, TT-33, M9, M93R, Umraex MP7, MP7
MEC
R-Type KWA-14 High-Intake Brass Piston Head (For KWA MP7 / M9 / M93R / TT-33) Sale priceHK$59.50 Regular priceHK$70.00
Airsoft OnlySave 15%Hop Up Rubber AEG: Precision Engineering for Superior Accuracy
MEC
Hop Up Rubber AEG: Precision Engineering for Superior Accuracy Sale priceHK$74.80 Regular priceHK$88.00
Airsoft OnlySold outSave 15%MEC, MEC Desire for Performance, Desire for Performance, MEC R-Type Piston Head For TM Hi-Cap G17 Gen3 1911 KJ KP-17, TM Hi-Cap, G17, Gen3, 1911, KJ KP-17, KP-17
MEC
R-Type Marui-14 High-Intake Brass Piston Head (for TM Hi-Capa / P226 / G17 Gen.3 / 1911) Sale priceHK$59.50 Regular priceHK$70.00
Airsoft OnlySave 15%MEC, MEC Desire for Performance, Desire for Performance, MEC R-Type Piston Head For TM PX4 FN 5-7 G17 Gen4 G19 WE17, TM PX4, FN 5-7, G17, Gen4, G19, WE17
MEC
R-Type Marui-15 High-Intake Brass Piston Head (for TM G17 Gen.4 / G19 / PX4 / FN 5-7) Sale priceHK$59.50 Regular priceHK$70.00
OZ9 Blowback Nozzle Set – B1 to B5, B7 & B9 Replacement Kit
PTS Replacement Parts - OZ9 Series
OZ9 Blowback Nozzle Set – B1 to B5, B7 & B9 Replacement Kit Sale priceHK$180.00
Sold outEPM1 Replacement Part - Follower & Spring Set
PTS Replacement Parts
EPM1 Replacement Part - Follower & Spring Set Sale priceHK$95.00
EPM1-S Replacement Part - Follower & Spring Set
PTS Replacement Parts
EPM1-S Replacement Part - Follower & Spring Set Sale priceHK$80.00
Velocity V1 Conversion Kit For P320 M18 / X Carry
PTS Killer Innovations
Velocity V1 Conversion Kit For P320 M18 / X Carry Sale priceHK$3,360.00
Talon Ambidextrous Selector For M4 MWS GBBR - Black
PTS Radian
Talon Ambidextrous Selector For M4 MWS GBBR - Black Sale priceHK$320.00
Airsoft OnlySave 15%V Piston Head Set — Dual Hardness Upgrade for GBB Pistols
MEC
V Piston Head Set — Dual Hardness Upgrade for GBB Pistols Sale priceHK$136.00 Regular priceHK$160.00
Airsoft OnlySold outComplete Factory Spec Internal Spring Rebuild Kit for KJ Works / ASG CZ Shadow 2
CL Project Design
Complete Factory Spec Internal Spring Rebuild Kit for KJ Works / ASG CZ Shadow 2 Sale priceHK$195.00
Airsoft Only7075 Aircraft Aluminum CNC Slide for KJ / ASG Shadow 2: Shattering Reciprocal Inertia Liabilities with Monolithic 7075-T6 Aerospace Efficiency
CL Project Design
7075 Aircraft Aluminum CNC Slide for KJ / ASG Shadow 2: Shattering Reciprocal Inertia Liabilities with Monolithic 7075-T6 Aerospace Efficiency Sale priceHK$1,050.00
Color
Sold outAmbidextrous Safety Selector SST (45 Degree) GBBR Version Semi And Auto For KWA/ KSC LM4
PTS B.A.D.
Ambidextrous Safety Selector SST (45 Degree) GBBR Version Semi And Auto For KWA/ KSC LM4 Sale priceHK$320.00
Color
Sold outAmbidextrous Safety Selector GBBR Version For Mega, G&P, WA
PTS B.A.D.
Ambidextrous Safety Selector GBBR Version For Mega, G&P, WA Sale priceHK$300.00
Color
Sold outAmbidextrous Safety AEG Selector
PTS B.A.D.
Ambidextrous Safety AEG Selector Sale priceHK$240.00
Color
6.00mm Nine Ball 108.5mm Power Barrel Set for TM G17
PTS Laylax
6.00mm Nine Ball 108.5mm Power Barrel Set for TM G17 Sale priceHK$300.00