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Griffin Armament
Overview
The Griffin Armament MK2 Ambi Stripped AR-15 Lower Receiver is designed for builders seeking a versatile foundation for their custom rifles. With ambidextrous controls for ease of use, this forged lower made from 7075-T6 aluminum enhances functionality, while the flared magwell facilitates quicker magazine changes. This lower is well-suited for multi-caliber builds, commonly paired with mid-length gas systems to provide a balanced shooting experience.
Griffin Armament MK2 Ambi Stripped AR-15 Lower Receiver - Ambidextrous Controls - Flared Magwell - Anodized Black - MK2AL
Griffin Armament MK2 Ambi Stripped AR-15 Lower Receiver - Ambidextrous Controls - Flared Magwell - Anodized Black - MK2AL was the tenth most added lower receiver on GunPartPicker in August 2026, behind the PSA AR-15 Complete Lower Magpul MOE EPT Edition - Flat Dark Earth, No Magazine, with about 2% of all lower receivers added to builds. Up from #12 in July. Builds with this lower receiver are nearly all chambered in 5.56 NATO, nearly all on mid-length gas, and nearly all AR-15.
It was in stock most days in August 2026, and today 3 of the 5 retailers we track have it in stock. It dipped to $189.99 at Palmetto State Armory for a stretch in August 2026, under its usual $208.95, so sales do come around. Buying today, the lowest price is $209 at MidwayUSA, above August's low of $189.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
We ranked every lower receiver by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Lower Receiver Trends →The part most often added in each category by the 309 builds that include this one
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Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK
Builds in the community that include the Griffin Armament MK2 Ambi Stripped AR-15 Lower Receiver - Ambidextrous Controls - Flared Magwell - Anodized Black - MK2AL
| Build | Parts | Total |
|---|---|---|
 | 28 | $3252.31 |
 | 25 | $1857.36 |
 | 14 | $970.95 |
 | 17 | $1688.49 |
 | 16 | $1540.64 |
| 16 | $885.12 |
2 global ratings
Top reviews
Griffin Armament MK2 ambi stripped lower has the flared mag well for faster reloads and ambi cuts for ambi selectors. Black anodize is consistent across the receiver. Mate to a forged upper has zero rattle. Solid ambi base.
Griffin Armament MK2 ambi lower is the best billet-feel lower Ive owned at this price point. Ambi controls work without modification. Flared magwell speeds reloads. Tight tolerances mate to any quality upper with zero play.
