Midwest Industries Suppressor Handguards

If you’re planning a tucked suppressor AR build, the handguard choice comes down to clearance, rigidity, and a setup that doesn’t turn into a science project—this series is built for exactly that.

The Midwest Industries SP Suppressor Series is a one-piece free float M-LOK handguard with M-LOK slots on seven sides and a MIL-STD 1913 top rail that’s T-marked for repeatable accessory placement.

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Quick fit check (the part that matters most)

• Inside diameter: 1.670"

• Designed for suppressors up to: 1.55" OD

If your suppressor is larger than 1.55" OD, you’ll want a different rail.

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Choose your length

All lengths share the same core design, so this decision is mostly about coverage, mounting space, and front-end weight. Installed weights below are manufacturer-listed.

Length	Installed weight	Best fit for
7.25"	9.0 oz	Compact setups, minimal coverage
9.25"	10.2 oz	Balanced builds with light + grip
10.50"	11.2 oz	Common “do it all” length
12.625"	12.8 oz	More tuck, more room to mount
15.0"	14.6 oz	Maximum hand space and coverage
18.0"	16.0 oz	Long builds and maximum rail estate

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Key features at a glance

• One-piece free float construction

• Seven sides of M-LOK compatible slots

• 1913 top rail, T-marked

• OD: 2.0" (1.95" over mounting flats)

• 6061 aluminum with hard coat anodizing

• MI lifetime warranty, made in America

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Compatibility notes (read before checkout)

• Does not fit large frame rifles

• Billet uppers vary, confirm fit with your upper manufacturer

• Listed compatible with forged uppers and the Midwest Industries billet upper

• Not for use on gas piston ARs

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What’s included

• Barrel nut and barrel nut wrench

• One 5-slot M-LOK polymer rail section

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FAQ

What suppressor diameter will fit under this handguard?

Midwest Industries lists a 1.670" inside diameter and says it’s made for suppressors no larger than 1.55" OD.

Is this a true free float handguard?

Yes, it’s described as a one-piece free float design.

Will it work with billet uppers?

Sometimes. The manufacturer notes billet upper dimensions vary and recommends confirming fit with your upper manufacturer; it’s listed compatible with forged uppers and MI’s billet upper.

Can I use it on a piston AR?

No, it’s explicitly listed as not for use on gas piston ARs.

Does it include the barrel nut?

Yes, the barrel nut and barrel nut wrench are listed as included.

Which length should I choose for a tucked look?

Pick the length based on how much suppressor you want covered and how much space you want for your support hand and accessories. Use the installed weights above to balance coverage versus front-end weight.