MARC Compatible triggers
| - Geissele | SSA | Two Stage | YES |
| - Geissele | SSA-E | Two Stage | YES |
| - Geissele | SD3G | Single Stage | YES |
| - Geissele | SD-E | Two Stage | YES |
| - LaRue | MBT-2S (Flat and Curved) | Two Stage | YES WITH MODIFICATION |
| CMMG | Milspec | Single Stage | NO |
| DPMS | Milspec | Single Stage | NO |
| Jacob Gray | Jacob Gray Single Stage | Single Stage | YES |
| MimTac | MimTac Drastic | YES | |
| Noveske | Noveske Single Stage | Single Stage | YES |
| PSA | PSA EPT | YES | |
| PSA | PSA Custom SS Drop In | Single Stage | YES |
| Rise Armament | Rave 140 | Single Stage | YES |
| Rise Armament | RA 434 | Single Stage | YES |
| Rise Armament | RA 535 | Single Stage | YES |
| Rise Armament | RA Blitz | Single Stage | YES |
| Rise Armament | RA LE145 | Single Stage | YES |
| Rise Armament | ICONIC | Two Stage | NO |
| Schmid Inside | Schmid Two-Stage | Two Stage | YES WITH MODIFCATION |
| Schmid Inside | Schmid Pro Line Trigger | Single Stage | YES |
| Schmid Inside | Schmid Inside GI Flat Face SS | Single Stage | YES |
| Schmid Inside | Schmid Inside Match Flat Face SS | Single Stage | YES |
| Smith Defense | AR15 Lower Parts Kit | YES | |
| Sons of Liberty Gun Works | SOLGW LFT | YES | |
| Spikes Tactical | Spikes ST Battle | YES | |
| Timney | Timney Competition 3LB | Single Stage | YES |
| Timney | Calvin Elite | Single State | YES |
| Heckler Koch | HK MR556A1 Trigger | NO |
Tuning Recommendations
These are general recommendations based on our personal experience.
Your experience may vary depending on your rifle.
5.56 16" Mid Length Gas- H1/H2 Buffer
5.56 16" Mid Length Gas Suppressed- H2/H3 Buffer
5.56 16" Carbine Length Gas- H2/H3 Buffer or Rifle Length Spring with Carbine Buffer
5.56 11.5" Carbine Length Gas- H1/H2
5.56 11.5" Carbine Length Gas Suppressed- H2/H3
300blk 7.5" Pistol Length Gas- H1
300blk 7.5" Pistol Length Gas Suppressed- H1/H2
9mm blowback ARs
Without proper tuning will cause premature wear. We will warranty any that deform regardless (excluding negligent retardation), but at this time we strongly recommending a 10+oz buffer weight or a captured/hydraulic buffer (the heaviest that is available) with the MARC if you're planning on running them with a blowback 9mm. For a tuning guide with full explanations check out the following video from Blowback9 on Youtube, he is a wealth of knowledge for your AR-"SMG"/AR-PCC needs.