144.1 Recoil Systems The Twitch (MPA/MAC)
A $40 Twitch tested only on MPA Defenders and sold explicitly as a beta builder's component.
- Price
- $40
- Weight
- 0.5 oz
- Brand
- 144.1 Recoil Systems
- Category
- Triggers
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Features
- •$40, down from $60
- •Vendor tested only on MPA Defender models
- •Beta builder component; tuning and fitting expected
- •Installed units are non-returnable
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Overview
144.1 Recoil Systems sells the Twitch design at $40, marked down from $60. It is a low-cost way to get the ToadLicker556 geometry into an MPA Defender, and the vendor is refreshingly plain about what it is: a beta device that may require tuning, fitting, polishing, or troubleshooting depending on the host.
The compatibility language deserves attention. 144.1 has personally tested the part only on MPA Defender models. They note that some customers report success on Cobray M11-style guns after removing or modifying internal components, and they explicitly decline to recommend, instruct, or encourage that. Do not modify a semi-automatic MAC's internals to force this trigger to fit. If your host is a Cobray, buy a system listed for it: the 3DP stainless unit, which lists Cobray fitment outright, or ART's MAC-11/VMAC9/MPA 2-Position System, which ART tested on Cobray hosts and installs with its own receiver clearance cut.
Returns are limited: installed, modified, fitted, or tested units cannot be returned, and uninstalled returns carry a 15% restocking fee. At $40 that is a tolerable risk, which is precisely the point of buying at this price.
Key Features
- $40, marked down from $60
- Same open-source Twitch geometry designed by ToadLicker556
- Vendor-tested on MPA Defender models
- Sold explicitly as a beta builder's component
- One round per trigger function; semi-automatic operation retained
Pros
- +Single-unit price is lower than the other cataloged steel Twitch variants
- +Vendor is candid about beta status and tested fitment rather than overclaiming
- +Low enough cost that a failed fitment attempt is not painful
Cons
- −The Twitch design's beta release reported out-of-battery detonations during testing
- −Tested only on MPA Defender; no verified Cobray fitment path without modifying the host
- −Installed or modified units cannot be returned; uninstalled returns take a 15% restocking fee
- −Tuning, fitting, and polishing may be required
Detailed Specifications
- function
- Forced reset trigger, one round per trigger function
- compatibility
- MPA Defender series (vendor-tested). Other MAC-style clones not guaranteed
- install
- Beta builder component; tuning, fitting, polishing, or troubleshooting may be required
- returns
- Installed, modified, or tested units are non-returnable; uninstalled returns carry a 15% restocking fee
- designOrigin
- Open-source Twitch design by ToadLicker556
- safetyNote
- The Twitch design's original beta release reported out-of-battery detonations during development. Function check and have a gunsmith inspect the firearm before live fire
- legalStatus
- Verify current federal, state, and local forced reset trigger legality before ordering
- manufacturer
- 144.1 Recoil Systems
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