10/24/2025
For the folks looking at FRTs, this is the latest progress note on different mahoskas:
--In development or planning = no working prototype.
Prototype =late development with functional prototype confirmed shooting on video.
-Pre-production = as above, release imminent
AR's - SS (and ARC) + FRT (RBT, Atrius) all 3 pos - all released
>All DI AR's in any caliber with a F/A cut carrier.
>AR-10's work as well but need a lever sleeve
>No buffer DI ARs like Foxtrot Mikes needs some tinkering
Piston AR's as above - NO ATRIUS
>MR556, BRN-4, MR556A4, Wolf T91, LWRC
AR PCC's
>Most of the non blowback delayed options work with SS or FRT with minor levels of tinkering
>Some blowbacks work YMMV
HK roller locks -
MP5 - SS and ARC only - needs dedicated AR trigger compact lower designed for SS use like Leber v2 or ARMP5v3 and a trip behind bolt.
UNRELEASED - drop in FRT packs for conventional HK lowers - an independent dev group has just PROTOTYPED + RBT has promised this would be their next trigger but are still in PLANNING
>MP5 and MP5K compatible
>MKE, HK, MAC, POF, PTR, Dakota arms compatible
>unknown status on older Coharie and vector arms Todd Bailey specials IMO they can go f**k themselves for owning that garbage
G3/HK51/PTR-91/AP51/HK91
PRE-PRODUCTION
UNRELEASED LOWER W/TRIP
SS or ARC in ASDesigns dedicated lower -trip mounted in lower. HK91 will not be compatible without modification.
HK33/AP53/C93/Dakota Arms 33
PRE-PRODUCTION
UNRELEASED - TRIP
SS and ARC with ASDesigns ARMP5 lower needed - current Leberv2 not compatible.
C93 compatibility UNKNOWN but assumed
HK11/HK21/HK23 Belt feds
PLANNING
Notes: neither of the MP5 HK lower compatible drop in pack FRT developers have confirmed capability with G3 or HK33 series
HK other:
UMP/USC .45ACP
PROTOTYPE
VP9
Planning
FN:
SCAR 17 + 16 - Released
SS (+ARC) and RBT FRT with respective TRIP + AR trigger compat lower required
PS90
PROTOTYPE
M249S
PROTOTYPE
M240S + OOW M240
EARLY PLANNING
Further note on PROTOTYPES - some may as of recently already be 3d printable but no commercial metal models exist
3Dprint space - released:
MAC-10/11 - SS only
Requires printed AR trigger compact lower - several printed lowers available from minimalistic to the larger Mac daddy
Vz61 - SS in .22lr & .32acp ONLY
Printed AR trigger compact lower
Conventional lower FRT IN DEVELOPMENT
Other PCC's
Stribog (roller delayed only 9mm/10mm/.40/.45) - SS + ARC unreleased
PRE-PRODUCTION
requires dedicated AS designs lower - 2 trips required for both upper and lower.
Current AR trigger compat lowers are NO GO
Kuna - recent release
SS + ARC and Atrius
AR trigger compat lower and trip needed
Vector (9mm/10mm/.45)
Drop in dedicated 3pos FRT retains all controls
Pre-production
CZ Skorpion EVO
Protracted development - lol direct blowback. IMO sell yours today
B&T TP9 TMP
Early planning
B&T other PCC's like APC9
PROTOTYPE.
Kel Tec P50/R50
Prototype- SS
ST Inc conversion lower only
Sorry, not sorry - never getting a FRT tier:
All other R***r, S&W and Kel Tec PCC's. Don't direct blowback kiddos
Rifles OTHER:
AK series including AK PCC's
RELEASED
- 2 position (SAFE and FRT) FRT - several different models including AKSS.
Some compatibility issues, but most models work with varying degrees of modification.
UNRELEASED prototypes - 3 pos out of box
Forward - current 2pos can be made aproper 3pos with F/A disconnector + sear, F/A safety lever unit I believe - legally dubious, not a huge AK guy so reference the AKfrt communities.
B&T rifles like APC223
PROTOTYPE
BREN-2
PLANNING
BRN-180
PLANNING
JAKL .223/.300
RELEASED - SS, ARC
requires slip trip and replacing rear receiver block308 JAKL- SS + ARC PROTOTYPE
AUG - RELEASED
3 position pack + trip with stock drilling for selector extension
Will function as 2pos if selector extension not installed ie don't want to drill.
Pistols:
2 position (SEMI/FRT):
M&P 2.0 (9mm/10mm/.40/.45)
PRE-PRODUCTION
G***k
Protracted development - mood is swinging to dedicated frame (printable)
No position - FRT ONLY
M&P 2.0 - released
TX22 - released and fun as f**k boiii
G***K - released - several models - all are jank and do not recommend. I'm sorry G***K guys wait for 2pos or look elsewhere like the MAC's with G***K mag AR trigger compat lowers
PSA Rock 5.7
Planning
P320 & P365
Early Planning - driven by large amount of pcc conversions
22LR other
10/22 - 2 position (SAFE/FRT) RELEASED
kind of janky- newer metal option improves things but performance is less than satisfactory
AR-22 - released - SS, ARC, FRT, Atrius
The gold standard in .22 frt long as.
Includes CMMG conversion bolts and dedicated uppers
Requires trip
SHOTGUN??!!!!
AKSS functions with some modification in AK shotguns
