Lyman MSR Ammo Checker Block
$42.86
Machined from solid 6061 T6 aircraft-grade aluminum, the Lyman MSR Ammo Checker Block verifies your AR-15 ammo meets minimum chamber dimensions for reliable feeding and function.
Out of stock
Lyman MSR Ammo Checkers are machined from solid blocks of 6061 T6 aircraft grade aluminum and cut with custom tooling to minimum chamber dimensions. Their black anodized finish matches your favorite “black” rifle. Check the quality and consistency of both loaded rounds and purchased ammo. A must for any AR shooter. You can?t afford mis-feeds so get the easiest ?Go? gauge available for modern sporting rifle calibers.
- Covers 223/5.56 6.5 Grendel. 6.8 Rem SPC 7.62×39 .30.0AAC Blackout .450 Bushmaster .458 SOCOM .50 Beowulf
- CNC machined to minimum chamber specs
- Confirm ammo will chamber smoothly
| Weight | 0.930 lbs |
|---|---|
| Dimensions | 6.850 × 3.650 × 2.150 in |
| Manufacturer | Lyman |
| Finish | black anodized |
| Material | 6061 T6 aluminum |
| Compatible With | 223/5.56, 6.5 Grendel, 6.8 Rem SPC, 7.62×39, .300 AAC Blackout, .450 Bushmaster, .458 SOCOM, .50 Beowulf |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.
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