Gravity Block

Do you have an AR-15 with a slim handguard that can’t ride bags like your PRS rifle? Do you want to beef up your lightweight bolt action rifle to help mitigate recoil and add stability when shooting off a barricade? The Precision Rifle Components Gravity Block is designed to help mitigate these issues.

This stackable weight system is available with both an M-Lok attachment system and American Defense MFG’s patented QD Picatinny rail mount. Weighing in at a pound each, Gravity Blocks are machined from nitrided steel billet. M-Lok Gravity Blocks can be easily added or removed in seconds with a single Allen key, while the ADM QD configuration allows for toolless removal.




M-Lok Block – 16 oz

ADM QD Block – 18 oz

Stackable Block – 16 oz

Additional information

Weight 1.3 oz
Dimensions 5.75 × 3.3 × 2.2 in
Kit Options

M-Lok Block, ADM QD Lever Block, M-Lok Stacked Block Set (1 M-Lok Block and 1 Stacked Block), ADM Stacked QD Lever Set (1 ADM QD Block and 1 Stacked Block, Set of 2 M-Lok Blocks


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