Magnumite
Ultimate Member
A quiery for the AR-fluent amoung the membership. I did a web search and read up. But first....
I have recently put an assembled 300 BLK upper on a lower assembly. It is a budget build.
The lower particulars:
- Anderson lower receiver;
- assembled utilizing a PSA 6 position stock,
standard weight buffer and spring;
- S & W LPK and stoned single stage fcg;
- K2 pistol grip
The upper:
- preassembled from Brownells;
- 16” barrel with carbine gas system, A2 birdcage;
- heavy bolt carrier;
- light free float handguard;
- sighting, MBUS front/rear, TRS 25 on handguard rear
Nothing earth shattering but shoots sound, fires, cycles correctly and accuracy is good.
Shooting offhand and using Federal 150 grain supersonic 1900 fps ammo it shoots predictably. Recoil is heavier than 223/5.56 and it tends to pull the muzzle to the right after the bullet is in flight. Not at all unmanageable. It reminds me of the DPMS 308 Classic I had, just nowhere near as hefty. Returning the muzzle to the target is simple enough.
Now that the info on the arm is presented my quiery. What has been the group’s experiences with smoothing out the recoil impulse, if that is doable to a reasonable degree? Buffer weight, spring force and so on.
I have recently put an assembled 300 BLK upper on a lower assembly. It is a budget build.
The lower particulars:
- Anderson lower receiver;
- assembled utilizing a PSA 6 position stock,
standard weight buffer and spring;
- S & W LPK and stoned single stage fcg;
- K2 pistol grip
The upper:
- preassembled from Brownells;
- 16” barrel with carbine gas system, A2 birdcage;
- heavy bolt carrier;
- light free float handguard;
- sighting, MBUS front/rear, TRS 25 on handguard rear
Nothing earth shattering but shoots sound, fires, cycles correctly and accuracy is good.
Shooting offhand and using Federal 150 grain supersonic 1900 fps ammo it shoots predictably. Recoil is heavier than 223/5.56 and it tends to pull the muzzle to the right after the bullet is in flight. Not at all unmanageable. It reminds me of the DPMS 308 Classic I had, just nowhere near as hefty. Returning the muzzle to the target is simple enough.
Now that the info on the arm is presented my quiery. What has been the group’s experiences with smoothing out the recoil impulse, if that is doable to a reasonable degree? Buffer weight, spring force and so on.
